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BOARD OF SUPERVISORS, COUNTY SERVICE AREAS,
STATE OF CALIFORNIA
RESOLUTION NO. 2013-107
RESOLUTION ADOPTING WATER SYSTEM DESIGN AND
WHEREAS, it is necessary to adopt Water System Design and Construction
Service Areas as contained in Exhibit. "A" attached hereto are hereby
repealed to the extent df such conflict and no further.• .',
WHEREAS, the Water System Design and Construction Standards for all County
adopted.
NOW, THEREFORE, IT IS RESOL YED by the Board of Supervisors of the
1. The Water System Design and Construction Standards for all County
2. All resolution or parts of resolutions in conflict herewith are hereby
CONSTRUCTION STANDARDS FOR ALL COUNTY SERVICE AREAS
ervice Areas as contained in Exhibit "A" attached hereto are in conformance with
ounty Service Areas 2,6, 7, 13, 16, 18,20,21 and 22, State of Cali fomi a, that it fmds,
urrent water facilities construction practices.
etermines, orders and hereby declares that:
Service Areas), and
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9 Standards for County Service Area Nos. 2, 6, 7, 13, 16, 18,20,21 and 22, (all County
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Supervisor Brown
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Supervisors Comstock, Rushing, Farrington and Smith7", ~ - .• " " ,. - - ,
Resolution No. 2013-107Resolution Adopting Water System Design and Construction Standards for
County Service Areas 2, 6, 7, 13, 16, 18,20,21and 22
THIS,.RE.SO~YTION was passed by ~e ~oard of Supervisors of County: Servicer ••• " '_~ ..•.• t. ~ •••. ~
ATTEST:, MATT PERRY. CI~rkof the' Board
r i ': oj,
ABSENT OR NOT VOTING:
AYES:
NOES:
September 24 , , 2013, by the .following vote:___________ -,-. "'_._,_,~_.' .,-, tll ..•." '. ;:."
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By: " _
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12 Areas 2, 6, 7, 13, 16, 18, 20, 21 and 22 at a regular meeting thereof held on
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18APPROVED AS TO FORM: ANITA L. GRANT. -. :~. '"\..:~ • t, \ f .:. " ,.
- County Counsel'"
The within instrument is a c~rrectcopy of the Document on file inthis office.ATTEST: o9-2lf-ZOf3MATI PERRYClet1<ofthe Board of Supervisors ofthe Stateof Californi' for theCou fLak6:By
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SPECIAL DISTRICTS
Lake County's Water and Wastewater Agency
. COUNTY OF LAKE
WATER SYSTEM DESIGNAND CONSTRUCTION STANDARDS
.,
SEPTEMBER, 2013
eSA#2, Spring Valley LakeeSA #6, Finley
eSA #7, Bonanza SpringseSA #13, Kono Tayee
eSA #16, Paradise ValleyeSA #18, StarvieweSA #20, Soda Bay
.eSA #21, North LakeporteSA #22, Mt. Hannah
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Lake County Special Districts Administration230 N. Main Street, Lakeport, CA 95453
(707) 263-0119
VII.VIII.IX.X.
I.II.III.IV.V.VI.
TABLE OF CONTENTS~ - '~_." ••• - • - < •
PURPOSE 1REQUIREMENTS FOR IMPROVEMENTS AND SUBDIVISION MAPS 1WATER MAINS,;:.GENERAL ~ '.: ;,; ..~..•.................................. 2MATERIALS :.:: -..; :.' , , ~ ~ ~:' 4CONNECTION TO AN EXISTING'PUBLIC WATER MAIN 4ALIGNMENT :: ~' 5
A--'--- --'Ho-rizontal ..:.~..~: ~ :-:- : 5B. ' ..Vertical: ~...- ~.:: :: ~..~ 6
MAIN SIZING CRITERIA .- :" : : ::-.:: :..: ' 7MAIN/SERVICE CONNECTION COVER. 7VALVING 8SERVICE CONNECTIONS AND METERS FOR DOMESTIC AND IRRIG.SERViCE 9
XI. PUBLIC IMPROVEMENTS FOR PRIVATE FIRE SYSTEMS 13XII. FIRE HYDRANTS 14XIII. BACKFLOW DEVICES (EXCEPT FOR FIRE LINES) 16XIV. PRESSURE :~';i •••••••••••••••••• , ••••••••••••••••••••••••• ': ••••••••••••••••••••••••••••••••••••••••••••••••••••• 16XV. SPECIALTY VALVES AND WATER SAMPLING STATIONS 17XVI. SPECIAL CONDITIONS FOR DELINEATED FAULT ZONES 18XVII. EASEMENTS 18XVIII. ABANDONMENTOF WATER MAINS,AND SERViCES , '..: 19. _. --
APPENDIX A - CRITERIA FOR THE SEPARATION OF WATER MAINS AND NON-POTABLE PiPELiNES : ' ' J ; 21
APPENDIX B - WATER SYSTEM CONSTRUCTION STANDARDSPECiFiCATIONS ' ; ; .. , :; .. .': : 33
APPENDIX C - BACKFLOW DEVICE REQUIREMENTS FOR SPECIFICTYPES OF USE. : : : : :',' .42- ..,
ENGINEER'S LIST OF APPROVED I}"_EMS ~.. ,.: :.. ,:-..~.. ',," .45~ of .:
STANDARD DRAWINGS (STD 851-.STD 888) .........•.. ~; 54~;. ":. .-. -:c.. t ~", ".'
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WATER SYSTEM DESIGN STANDARDS
I. PURPOSE
To provide guidelines for the design of water utilities projects and thereby reduce thetime required for processing the plans. These guidelines do not include, but mayreference, additional conditions which may be promulgated by all other pertinentordinances, codes, and official policy set forth by Special Districts Administration orother departments of the County of Lake or other government agencies. Theseguidelines establish minimum acceptable design criteria. More stringentrequirements may be imposed by the Administrator based on specific projectconditions.
Portions of these standards apply to fire systems, both public and private, and areintended as general reference to aid in the design ofthe public water system. Finaldesigns are subject to approval of the local fire agency.
It is the responsibility of the design engineer to initiate written requests to theAdministrator for approval of any design concepts that differ from these criteria,verify additional requirements imposed, perform any necessary calculations orstudies, and resolve specific design problems with the appropriate agency,department or division.
II. REQUIREMENTS FOR IMPROVEMENT PLANS AND SUBDIVISION MAPS
A. Provide a detailed utility plan showing onsite and offsite public andprivate water and fire protection systems, including mains, services,hydrants, and all other required appurtenances, and their connectionsto existing County-maintained water facilities. Show the location, type,and diameter of public and private water mains. Reference any existingfire hydrants within 300' of the project boundary. Show any wellsexisting or to be abandoned. When a separate irrigation service isnecessary, an irrigation plan is required per section X-O of thesestandards. (See section XI-B for submittal of plans for private firesystems.)
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B. Annotate the local agency information sheet of the Subdivision Mapwith any information that is needed to notify property owners ofrequirements for connection to the County water system. Theseinclude, but are not limited to:
1. payment of fees prior to issuance of Building Permits,2. lots requiring pressure regulating valves or booster
pumps,3. backflow protection,4. public water access requirements, such as gates or
access roads.The appropriate information may be obtained from Special Districts.
C. Miscellaneous specific items required on improvement plans areindicated throughout these Standards.
D. Before combustible materials may be delivered, stored or constructed on site,fire flow and access must be provided and approved by the local fire agencyper current County Fire Code. In addition, public and/or private fire hydrantsmust be installed, flushed, tested, and operational. This information must beincluded on all improvement plans. Provide any necessary calculations withthe submittal of improvement plans or with the Tentative Map submittal todemonstrate adequate fire flows are available.
III. WATER MAINS - GENERAL
A. Public water mains may not be designed outside the public right-of-waywithout Administrator approval.
B. In general, publicly maintained water systems will be designed onlywhere they serve multiple ownership lots and where appropriate accessfor maintenance can be provided.
C. Water mains installed at a slope of 15% or greater will be designed withrestrained joints. The Design Engineer must provide adequatedrainage measures to protect the trench from erosion.
D. Water mains installed outside of any roadway, referred to as cross-country mains, must be Ductile Iron Pipe and will have suitable access.In general, cross-country mains must be isolated with valves in thepublic right-of-way and rrtust be identified with blue locating posts(Carsonite 492 CW-112 or approved equal) at approximate 500'
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intervals, at any angle point, and at the entrance to an easement.Stakes should have vandal-proof metal bottoms. Access requirementsmay be imposed on a project based on site conditions.
E. For system reliability, to minimize pipe size, and to minimize thenumber of people affected by a system shutdown, either for domestic orfire protection purposes, no more than 100 residential units may beserved by a single-feed water system, provided it is hydraulicallyadequate. Where more than 100 units are to be served, a dual-feed(loop) public water system must be designed to provide a secondarysource of water to the project. Onsite private fire requirements, such asdual fire services and looping mains, will be determined by the local fireagency for residential and nonresidential developments.
F. For purposes of leak detection and maintenance access, no reinforcedconcrete may be designed over publicly maintained water facilities.Unreinforced concrete will be allowed under special circumstancessuch as crosswalks.
G. For the purpose of locating buried pipe, electrically continuous tracewire of #10 copper with thermoplastic insulation of the direct burial typeshall be installed on all water mains and service lines. Wire connectorsshall be watertight to provide electrical continuity. Trace wire to beinstalled in the same trench during pipe installation and secured flat, at10' intervals, to the pipe to ensure the wire remains adjacent to thepipe. Access points shall be no greater than five-hundred (500) feetapart.
H. Extent of water main improvements will be as follows:1. Any offsite water main improvements needed to serve the project
must be shown on the improvement plans, including upgrades toexisting mains that may be required as a result of a flow analysisor modeling effort.
2a. In general, water mains must be designed at least across one-half of the property frontage or to the last service connection,whichever is greater; or
2b. Where the project is required to provide new streetimprovements over the water main alignment and the water mainwill serve properties beyond the project limits, the water mainmust be designed to cross the full property frontage or to thelimits of the street improvements, whichever is greater.
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I. Streets with both water and sewer mains must be at least 20 feet wide,face-of-curb to face-of-curb; one utility only: at least 16 feet wide; nowater or sewer mains in alleys.
IV. MATERIALS
A. Service connections will be high density polyethylene (HOPE), PolyvinylChloride (PVC), or Ductile Iron Pipe (DIP) per applicable CountyStandards.
B. 8",10", and 12" public water mains and 4"-12" private fire mains will bePolyvinyl Chloride (PVC) Pressure Class 150, DR18 per AWWAStandard C900, minimum or Ductile Iron Pipe Pressure Class 350 perAWWA Standard C151 minimum. Where the normal mainline staticpressure exceeds 100 psi, Ductile Iron Pipe or PVC Pressure Class200, DR14 must be used.
C. 16" diameter water mains will be Polyvinyl Chloride (PVC) per AWWAStandard C905, DR25 with a pressure rating of 165 psi or Ductile IronPipe per AWWA Standard C151, or as shown on plans andspecifications. Where the normal mainline static pressure exceeds 100psi, AWWA Standard C905, DR18 with a pressure rating of 235 psi orDuctile Iron Pipe must be used.
D. 20" diameter and larger water mains will be concrete cylinder pipe,wrapped steel pipe, or Ductile Iron Pipe.
E. Asbestos cement pipe will not be allowed under any circumstances.
V. CONNECTION TO AN EXISTING PUBLIC WATER MAIN
A. Indicate a hot tap for connection of service connections 2" in diameterand smaller.
B. Indicate connection of pipes 4" - 12" in diameter with a hot tap or a cut-in tee in conformance with the provisions of the Water SystemConstruction Standard Specifications Section 1-1.20. Hot taps will beallowed only when no main line valves are required, always install atee.
C. Design a cut-in tee if additional valves are required on the existingmain. If the new main/connection is larger than the existing main, the
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tee and main/connection valve will be the size of the existing mainunless it is hydraulically necessary to increase the tee and valve to thesize of the new main/connection.
D. Tie-ins to the existing County water system must be inspected by aSpecial Districts representative and the improvement plans must be soannotated.
E. Size-on-size taps are allowed up to 8" in accordance with the approvedstandards. 12" size-on-size taps are allowed only under emergencysituations and with the specific approval of the Administrator.
F. In most major streets, or where the street surface is less than five yearsold, installation methods other than open cutting may be required.The County Construction Engineer or the County Engineer asappropriate will determine the requirements based on the condition ofthe existing street.
VI. ALIGNMENT
A. Horizontal
1. Alignment will be in accordance with the provisions of Standard871.
2. The minimum allowable radius of curvature for an 8" water mainis 250 feet and for a 12" water main is 350 feet. In situationssuch as streets that have smaller radius curves, the watersystem will be designed in straight segments parallel to thesewer or storm drain system so that future locating is simplified.
3. Conform to the State of California Department of Public Health"Criteria for the Separation of Water Main and Sanitary Sewers"(See Appendix A).
4. The minimum horizontal separation from storm drains,monuments, gas, electrical, and telephone lines will be 4 feetclear between facilities except at crossings.
5. The minimum clear horizontal separation from a metallic pipelinewith an induced current or from an anode field will be 5 feet.Where the new water main will be in proximity to an anode field,
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, R j ~ _ !,' special design',will be required for approval by ,theAdministrator.''i- .-1'
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6. All public water mains must be designed a minimum 5 feet fromall structures, such as manholes or drop inlets. Provide a
" "~_ .~"" ~tminimum of 3feet fromthelip-ofgutter for.serviceconnections.' "',' ~',: : ' , . ':, j~nd'r-epair~. Water mains Will be d~signed'a minimum of 5 feet
from the edge of easements. ~ ...r ,
.. ,' ,,7.;',.; ~1I.watermain tr~nch~sthatare'parallel tOiand deeper than the":' footi,ng of any adjacent stru~ure,mustbe designed at least forty-
,five (45) degrees from 'the footing as required in: the UniformPlumbing Code. Any exceptions must be approved in writing by
" ,', ,~_the AdministratQr ~nd the 10cal,Building,OfficiaL;;:" .} j f ~ '.•.~ ,.. t-, ~ {~~ ",~,'~' I ~, ~.'~.~.t;
8. ';, ~,Wh~redual~watermains are designed, a~i~imum 5 feet clear, .
l'j hor!zor'!taJ.s~p.ar~ti.onwill be;maintaJned. ',. )~-
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9. In general, water main crossings over or under otherunderground facilities will be designed as close as 9'o°.to that'facility as possible. Crossings of less than 45° will only beapproved when no other design is possible.,.:._:
B.. ,Vertical,
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1. Generally provide a minimum of 6" of vertical separation from, .: ., stofrrt drail)s ,~r.~tl1er un_derground ,utilities. s~ch as telephone,
I : ',ca.bl~TV, ga;s,C?relectric conqu!t~_vvhenthe minimum cannot be;; . ".', !)1aintained,.;p'l~n~.Will indicateiJ}stallation, of felt expansion
,rpaterial, ~ty~ofoam, or equiva.l~nt _betwee~:facilities. Other': '," measures, such as.the use of concrete encasement, controlled
,' .. density backfill, or ductile iron pipe may be submitted for. , • ,_I .' :;.:_ '::;! ~ ;~ :'~ppro.'{alo.fthe A~mi~istrator ..The~psolute mJnimumseparation
,, - ~.:between water and other underground facilities, except sewer" 'mains will be 1.b;'." " .:-,',.
2:, 1 ,Conform to the, Stat~ of California, Department of Public Health"Criteria for the ,Sep~ration of Water Main and Sanitary
., S~w.~r~'~(~ee,AppEmdixA). ._,,'~'.,.,
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3.. , Wh~fe dual .water ,mains' are designed, a minimum l' clearverti~1 separation will be maintaine(.i.
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4. Where the new water main will be in proximity to an anode field,special design will be required for approval by the Administrator.
VII. MAIN SIZING CRITERIA
A. Allowable nominal sizes for public water mains are 8", 10", 12", and16". Mains larger than 16" must have specific approval of theAdministrator.
B. Public water mains must be sized to meet mInimum Fire Coderequirements in addition to domestic and irrigation demands. Privatefire protection mains must be sized to meet minimum Fire Coderequirements (see Section XII-L for fire flow requirements).
c. The minimum new public main size is 6 inches. New public mainsserving commercial, industrial and/or multi-family residentialdevelopments greater than two units, must be a minimum of 10 inches.Existing mains that will serve such proposed uses must be upgradedas needed to meet the current Fire Code.
D. Analysis and design of water systems will be based upon the criterialisted in the County's Water System Master Plan where applicable. TheAdministrator may require increased pipe size for overall systembenefit. When the project is required to provide larger water mains thanneeded for the development, the applicant may apply to SpecialDistricts for oversize reimbursement.
E. Maximum flow velocity for new public or private water mains is 10 feetper second, to be calculated by applying the demands from Section VII-B above.
VIII. MAIN I SERVICE CONNECTION COVER
A. Cover is the distance from the top of the pipe to final finished grademeasured directly over the pipe.
B. Typically, the minimum standard depths of cover for public water mainsand private fire protection mains are:
Pipe Size 4" 6" 8" 10" 12" 16" orLarger
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Cover 36" 36" 36" 40" 44" 48"(in.)
C. Where minimum cover is less than standard or greater than 8', specialpermission from the Administrator is required. Show mains withnonstandard cover in a profile on the Improvement Plans orEncroachment Permit applications. Where cover is less than thestandard, Pressure Class 350 Ductile Iron Pipe is required.
D. Where standard cover cannot be maintained, such as at the crossing ofa water main with a sewer main or any other utility line, either anundercrossing or overcrossing will be chosen based upon theevaluation by the Design Engineer. Evaluation will include the need forhigher class pipe, use of controlled density backfill as pipe encasement,ability to meet California Criteria for Separation of Water Mains andSanitary Sewers (Appendix A) and the resulting need for air/vacuumrelease valves. This evaluation will be submitted to the Administratorfor review.
E. The minimum cover for service connections will be as shown on theappropriate County Standard Plan. Where service connections haveconflicts with other facilities, a detail or profile must be shown on theplans, or the plans must be sufficiently annotated to give clear directionfor the installation.
F. When designing a cut-in tee for a service or main connection that islarger than the existing main, the new assembly must be shown at adepth sufficient to allow the valves to remain below the street subgrade,which may necessitate lowering the existing main.
IX. VALVING
A. Valving at intersections will be in accordance with the provisions ofStandard 871. A minimum of three (3) mainline valves are required forTee-intersections and four (4) valves are required for crossintersections. A valve is required at all tee or cross intersections.
B. All hydrants must be on separately valved sections of the public main,including fire lines serving private hydrants.
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C. Any water main which does not have a fire hydrant or serviceconnection will have valves designed at approximately 1,000 footintervals or as required by the Administrator.
D. Water main valves must be designed outside of concrete areaswherever possible to facilitate repairs.
X. SERVICE CONNECTIONS AND METERS FOR DOMESTIC ANDIRRIGATION SERVICE
A. Developments will be provided County domestic and/or irrigation waterservice via water meters located at the frontage of ~ public street.
B. The County may allow meters to be located on private street frontagesand/or within public utilitylwater easements if the Special Districtsevaluation concludes that it is reasonable under the circumstances.However, meters must be readily accessible.
C. Design meter boxes out of traveled ways and a minimum of 10' fromstreet trees whenever possible.
D. Base any required hydraulic calculations for the water meter andservice connection sizes on criteria from AWWA Manual M22 andsubmit to the Administrator for approval.
E. The maximum velocity in domestic, irrigation, fire line, or combinationwater service connections from the main to the meter is 15 feet persecond.
F. Maintain a minimum 5' horizontal separation between water and sewerconnections.
G. Meter manifolds other than those shown in various County StandardPlans will be detailed on the plans and approved by the Administrator.
H. Residential (single units)
1. Each lot must be separately metered.
2. A standard 1 ~ " dual water service connection is required toserve two single-family residential lots, providing each lot is lessthan one acre.
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3> ."' erovide 8' 1",service connection with a 5/8". meter for any lotgreater than one acre.
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I. Residential with second unit; two single family detached homes (SFD's)on one'lot, and Duplexes..;' *. "
1. Each unit must be served by separate meters.
":':'2.",.~!.If~new"~~cond ~nit isconstru~t~d the service connection mustbe upsized to 1 ~ ".
"~ 0 .~. "-. • ~ _ ~, -.A' ; .
. If the, primary unit and thesecond.unit are to be constructed at~~, the.sametime, design a 1 ~"service connection for the site.
4. The appropriate service connection must be shown on the Public, . . .' _~1~'.ImprovementPlansand/or Encroachment PerJ!lit submitted for
approvaL" I o'" c.
J .. :.i Multi-Family Residential.(3 or more units);t:~. ' ......~ ; .-
1. For triplexes or lots with three: planned unit- developments(PUD's), condominiums, or town-homes, individual meters are
I ." ,_ required for each unit., ~' .. , , .,.
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For multi-family developments of 4-1 units, whether rental unitsor separate ownership units, design for an appropriately sized
: single master meter, a'master meter for,each building cluster, orindividual meters for each unit.
, 3~,r{~For complexes ,of 100 units or more,:metering.wiH be designedasjn. (2) ab9ve, except that at least two metered connections arerequired if the project is to be master-metered. .
" ..4. See Section X-O for irrigation meter requirements for any
landscaped-or, common areas.~: _
.. 5: t All meters must be within public right-of-way or easements and.mult.ipl,emeters Will-be clustered where possible.
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K. Mobile Home Parks
1. Mobile home parks that have rental spaces may have a mastermeter (two master meters if more than 100 spaces) or each unitmay have an individual meter. Parks with individually-owned lotsmust have individual meters. When master meters are used, themobile home park owner may sub-meter to the tenants at theirown expense, providing they comply with P.U.C. requirements.
2. Individual meters must be clustered and located within the publicright-of-way or easement.
3. See Section X-O for common area irrigation meter requirements.
L. Mixed residential and commercial uses must have separate meters.
M. Commercial
1. See Section X-O below for irrigation requirements.
2. A minimum 111 domestic service connection is required forcommercial use.
3.. Critical uses such as hospitals, jails, elderly care facilities, andothers as determined by the Administrator, require at least twoseparate water services for domestic use that must be connectedto separately valved sections of the public water main.
N. Combination Services for Private Fire Service with Domestic and/orIrrigation Service
'1. Only 611, 811 and 1211 combination service connections are allowed.
2. The combination service connection must equal or exceed thesize of the required fire line and must be hydraulically sized toprovide adequately combined domestic, irrigation, and fire flowswithout exceeding allowable velocity of 15 feet per second.
3. A minimum 611 combination service connection is required for lotswith unknown commercial, multi-family, industrial and shoppingcenters uses where onsite hydrants are not likely to be requiredfor development.
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4. A minimum 12" combination service cOnnection is required for"I.ots with' unknown com~ercial, multi:-family, industrial or:, shopping ceJlter use~ where onsite hydrants are likely to be
" ", required.fordeyelopment., I, 'I
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O. "Irrigation , .~'.
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2., I
3.
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'Provide separate irrigation meters for landsCaped areaS of all': commerci~I"yses. ~
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Provide separate irrigation meters for common areas of allcondominium, townhouse,' PUD, ,apartment complexes, andmobile home parks. ' , "'. .' .
. .~Provide reduced 'pressure' backflow devices for all irrigationservices. Backflow devices must be specified on the irrigationplan and must conform to County standard 876 and current
.. , University •.of ,Southern California' (USC)~Approved List ofDevices. ' . . . '. ,.. ,
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4. Sizing of irrigation meters will be determined by the Administratorafter reviewing the landscape plans:" Irrigation meter size will be
.',! i '.. determined by the maximum flow required at the meter and willbe 'based on AwWA crfteria'formeter sizing. Water demand
-' .'",purchased ~i11be' based 9n th~ 'est!.mated'gallons required to, ,maintain the planned landscape in ,a healthy condition for our
" ,•. , - ..climafe. Along 'with landscape and 'Irrigation plans, the applicant- must submit the planned square fo()tageof plante9 areas and
categories of piants to be used as sele~edfrom the following:
ao- High water use,plants: turf, annuals, ,andcontainer plants;• , ~,' ~ • • ,.'-. • . .•. 0"';">. .
, ,~" ,b~>...~Moder!=lte~ater. us~.plants:,,~rnamental trees, shrubs# •• -, .: • ground covers, -and perennials primarily irrigated by
.,' .,:' i~.• ~sprinklers~(Note ~h~t ther~ may b~ some use of drip or, _ .:' bub~lers il) this category ,b.!J!l1ota predominance.)
,.._'.. I _" ,c. Low water use plants: drought tolerant plants recognized
~s"j.having~,a plan,t,fa.cto':#,~' 0.3 or less and irrigatedpri":lariJy through drip emi!1:ers.
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XI. PUBLIC IMPROVEMENTS FOR PRIVATE FIRE SYSTEMS
A. Design plans showing private fire systems must be submitted to the, appropriate Fire and/or Building jurisdiction for approval and 1) may be
included with the Public Improvement Plans for the project, or 2) copiesof the approved plans may be submitted to Special Districts prior to .requesting a meter set and activating the fire system.
B. Generally, the connection size must be designed the same size orlarger than the size required for the fire sprinkler system and/or theprivate hydrant system. Caution - onsite fire system design maynecessitate changes to pre-approved public improvements. Thehydraulic calculations for connections serving private fire systems willbe based on the required fire flow or the fire sprinkler demand,whichever is greater, combined with the peak domestic flow.
C. All private fire systems that only serve onsite' hydrants require. aboveground single detector check valves in accordance with Standard
888. Where aboveground installations are not reasonable due to siteconstraints, design for single detector check valves in vaults perStandard 879.
D. Double-check detector backflow assemblies are required for:
1. all connections serving commercial fire sprinkler systems; or
2. any property with multiple fire service connections; or
"3. any fire line connections to properties with auxiliary water supply.
F. Reduced-pressure detectors are required for:
1. any fire line utilizing chemical additives such as antifreeze or firesuppressants; or
2. any building where an extreme hazard exists.
G. For one- and two-family residential fire sprinkler systems:-' 13 -
1. Where the multipurpose water system circulates for firesprinklers and domestic supply, no backflow device is required.
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2. ,yv~~r~th~fire. sY,st~mdoes'nqt...clrcul~te,wa~e.rwith the;domesticsupply, double-check backflow assemblies must be designed
, },;: •• : 'i, 1 .' ,~vtheLet.he~re.~y~stemcpnne.ct~'!9th~ domes~ip;s.y.stem.Design; . :'),'~,t)~~~ackfJo~.~~s~mbIY,a~closeCl~,Ros~ibletQ:t~e,water meter.•• - .j." , ,•
. {'}~ ~A"':.~"":lt<~Yt'1F_~:t, l.;',:''t"'' "~'"I\::;" "\~ .-"f'~'l }~~~~j1 ..
..~'~.j Ivv_~erea;fire,~~prin~lersyste'1'lis,to. be inst!3l1edlin,aone- or two-(family ~w~!ling,:de.sign the .•servi~,co'1nection.from the streetmain to the water meter and the water meter to be 1" minimum.
['Larger:~ize;~'1r-'lections ~r)d.IT,'eter-s,may be',permitted where"" .,~yqra:uli~"calcul~tiorls incli,~te..:tQe..ne~Q.';, 1H' :
I", --,',". \ •.•.... t-,-.~ > .'':'':~'i ~~: J r.,'1- r_ ~~' ~{~~' •• '1r ~ ,I ~
H:~~\, ,Th.e~l.~ca~iOD9fanY,Rir~ pepartme,rlt cpm'l~,ctionrnu"st,beapproved by, "_,. th,-~Jo~1~r~:g~rlFY.:~,c;,'( ,f 'i~ ;:,. " ,
I.
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;;~-~l'.''''-'~ e"~;~l l~" _.,<~ ." '. ~""';-:1," ,~1i+){~~ ""J ~,¥':J,Critical, uses .such as,hospitals; jails, elderly care facilities, and others,as determined by the Administrator and/or the local fire"agency, requireat:I~~~t twq~re H.ne.~eryi~eBoone.9ti9nsto separate!y..valyed sections
.'~ oUhepublicwater main, so that service ean.be maintained in the eventt.... -,,;.,..' ..~.; ".'h-i_. _',' ! .,. ',~ . .,..,.;.'" ~ ,~".. ,'•...~'.,. ~""':"I.".'~,~, ".•••. ' ... -, •." ..• .~
, ,,.:.ofa,main,,lineshutdown~",,. ~',' 'j• ':'! ti-" " ,,~' _." _.~ ~,.- ••. ....,' • i""lf ••• " ' ~. ''''.... . ~.. - -4" '"
,I
A. : \~e~~.r.~Hy,.fire;.hY9!:~."!t~requiredonsit~ to.•~erve,pneJ9t:will be private.
B.
C.
Gen~rally, fire,hydr~~~s.{~,quiredon~it~ t9J~~,rvewoor more lots will bepublic.!'h1 '.~l,~\-~ N-~:.#..' _W~-~0,~"~. '''.': ~ . j :':'~.'!.{.t'~:~,< ',t ~ ',~ < ;;, "
Design of hydrant locations must meet the Fire Code requirements and"be,~ppr9v~q; .:9Y, t,~~"local fire. a.g~!1~y.,:.f9r;l!lqgisti~and' by Special
Districts for maintainability.
D.
F.
/~. . ~...,-~l.~<.:'I ::<-)~-t~'~;f... ~~tj _t", ~..,
Each hydrant must be'on a separately valved main line section..~.:. '" .:-~":.~?'''''r.$ .._,,- ..f F -:;~,;<~J.; ,.,,:'. ,~ .~"t'."':, ~. -, j ':"r-- ~
Whenever possible, locate hydrant~.ne~r=~tr~~t)rtersections.
If it is .n0t:p,os~.ibJ~.~~~~ca.te,;,near,,~n)ntersecti.oni,locate .:thehydrantnear a property line orwhere it will minimize interference with propertyu~~:. ~:\,~ ".",->, F\; •• ~ l:l ••• :'r\L~ ~.~..~' ~"
- 14 - ",.
G. Locate hydrants a minimum of 10' from roll down of driveways forcommercial or multi-family sites and 5' from residential driveways.
H. On streets with raised medians or with four or more travel lanes, designhydrants on alternate sides ofthe street per current County Fire Code.Each side of the street will be considered independently relative tohydrant placement per subsections XII-J and XII-K below.
I. Residential property with one or two dwelling units- Typical locations
1. Design hydrants with a maximum of 500' spacing, or asapproved by the local fire agency. Design hydrants at amaximum spacing of 300' in High Fire Severity Zones.
2. . Generally, design hydrants at intersections and then evenlydistribute hydrants throughout the project.
3. No one or two family dwellings may be more than 250' from thenearest hydrant or more than 150' in High Fire Severity Zones.
4. Specify residential hydrants per County Std ..857 on the plans.
J. Commercial, Industrial, and Multi-family (3 or more units) - Typicallocations
1. Generally, design hydrants at intersections or drivewayentrances and then evenly distribute hydrants throughout theproject.
.2. No portion of the exterior wall of the facility or building may bemore than 150' from the nearest hydrant as measured by anapproved route around the building per the County Fire Code.
3. Specify commercial hydrants per County Std. 857 on the plans.
L. Minimum fire flow required at all hydrants: .
1. Fire flow as specified in the following subsections is defined asthe amount of water available at 20 psi, where that pressure iscalculated at the discharge outlet of the flowing hydrant.
- 15 -
2. Single and two family residential uses require 1,500 gallons perminute flow, except as in subsection b::4 o! this section below.
3.1 :. • • f {,
The required fire flows for schools, commercial, industrial, andmulti~familyresidential (3 or,more units) uses Will'be based onJhe County'Fire Gode. Thewate(system will be designed so that:.1,500 gpm',is available from,.the hydraulically most demanding
' .• hydrant and the remaining flow required is.available at the nextmost demanding hydrant(s), up to a maximum of 1,500 gpm per
,•I hydr~nt. . "
4;." The minimum required fire flow. in !;iigh Fire Severity Zones is';:-. ; ',2,500 gpm for all occupancies, ',including one and 'two family
I •residential dwellings. System.design will 'accommodate flow.apportionment as in subsection L:3 above.
f ~ • ~-i1."1... .- ~ ..~f~ .~.• (, to " ~.,' :
5. Fire flow requirements are undel\the jurisdiction ofthe local fireagency. The guidelines given above are intended to be general.
".. • " Actual flow requirements'mustlbe verified with the local fire, . : agency prior to,submittal of plans. Calculations may be required
by the local fire agency to verify the adequacy of the proposed" .' _.de~ign.. ),' .' ~ '. ;'" '
XIII. BACKFLOW Q.EVICES.(EXCEPT FOR ~IRE lINES)--:' ..
A. Backflowdevices are required to be designed in accordancewith State of.CaliforniaTitle 17 and current Lake,CountyCode. '".. '_: '.,...-.."" '''.... .. -..~.' , ..~.. ,.' .
~. (~ !".~,",( •.:., ''l f'" l :."~', l '. ' ~".., . B. All backflow devices must be listed on the latest rev!sion of the approved
USCFoundationfor Cross-ConnectionControland HydraulicResearch list.
, C.\.
Install"backflowass~mblies'asnearas pos~ible.tothewater meteras shownon Standards874, 875 and 876. -, '. • .'. .'
fl.,.i J' • oF ,1,.~ '"1 I T ~ '~: ~. I 't '1 :t'" 'i.; _i _ ~
D. Backflow preventerswill be designed in accordancewith Appendix C. Fori.' uses not listed contactSpecial Districts>;-- -oC .!:~i:..'
XIV. PRESSURE .~. i.
A.. To obtainwater systemdata forthese calculations,contactSpecialDistricts.A fee will.be'imposed'if flow testing is"required. "
• • ~', . • 7 , < . ••
B. Mainline
- 16 -
1. The minimum allowable static pressure in the system is 20 psi.
2. The maximum allowable static pressure in the system is 120 psi.
3. The maximum allowable pressure in a high-level zone is calculated byassuming the reservoir full. In reduced pressure zones, calculate thepressure by using the high setting of the pressure regulating valve atthe nearest connection or system regulator.
4. The minimum allowable pressure in a high level zone is calculated byassuming the reservoir drawn down 10' from the high water level. Inreduced-pressure zones, use the low setting of the pressureregulating va,lve at the nearest connection or system regulator.
c. Domestic service
1. The minimum allowable pressure is 20 psi measured at the meter. Ifpressure measured at any faucet is less than 35 psi, a pressurebooster system is required.
2. The maximum allowable pressure at a meter is 120 psi. If servicepressure measured at any faucet exceeds 80 psi, a private pressure-regulating device is required.
xv. SPECIALTY VALVES AND WATER SAMPLING STATIONS
A. Specific locations will be reviewed for each project by Special Districts.
B. Air release and vacuum relief valves are required at substantial high points inthe system such as over a hilltop or at the upper end of a dead end main.
C. Design pressure reducing valves to maintain overall system balance and tomaintain service pressure levels within the parameters established within.these system design standards.
D. Typically surge or pressure relief valves are to be designed near the lowpoints of any high level pressure zone where discharge may be directed to anapproved disposal system.
D. Water sampling stations are required to provide representative samplingwithin each pressure zone. At a minimum, one water sample station isrequired in each pressure zone, at each reservoir and at pump stations.
- 17 -
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XVI. ,. SPECIAL.CON'DrnONS' FOR DELINEA TEDFAUL TZONES- ~,'~~;~" '.~ ~.'~ 'l~,..' •
A. : .. :FaUlt zones must be'identified on improvement plans~' "~•••.•, .• ~ I .',
B.
' •••• 4
D~ctile iron pipe must be specified on the improvement plans in delineatedfault zones and rextend to -100' outside' each; side of the delineated faultboundaries)' . . .•. ;I • .
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C,'"' Pumpercohnections or-fire' hydrants will be designed approximately 50'outside each side of the delineated fault zone. Gate valves must bedesigned between the fault zone and the fire hydrant/pumper connection,
D. Mechanical jOint double-ball Flextend assemblies with 8"'expansion Icontraction capability, as manufactured by EBAA Iron, Inc. of Eastland,
'I •• Texas; or approved alternative, must be',desigriedadjacent to each side of, ' the fault zone. !.I; - ;:
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XVII. EASEMENTS. ."';'
A.- -, An' easemenf'must be provided for. any public water'system when it isinstalled outside a public right-of-way. '. ~', :
B. The easement must be aminimum of 151wide if it only contains a water main'or 20' wide if it contains another facility, such as sewer, storm drain, or other
.' . -u'tility.-. The easement will be dedicated as'a.'Jpublic water easement" if itcontains water only, It will be dedicated as a "public utilities easement" if it- contains other 'facilities as well. :'. . ' -.. ",. -. . ~,
c.,..;,.'
'-Easements must be configured to encompass all publicly maintainedappUrtenances,' such as water service 'connections, meterS ~nd fire hydrants'andwill be generally centered over the facility. Separate acCess easementsmay be required depending on siteconditi6Jis,':When wate(mains are to beinstalled along a property line the easement will be wholly contained on oneparcel. " ' ., .' ,,,.~,-! '> •
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D. All property restrictions placed as a result of dedication of easements will beso'noted on the Subdivision Map, or on the Easement Deed ifthe easementis not dedicated' as part of a subdivision, Required 'notes 'are:
- 18 -
1. No structures may encroach on, above or below the surface of theground in any public water or public utility easement. This includesfooting of foundations or eaves from the roof of any adjacent structure,pools, ponds or outbuildings on slabs or foundations. Decks, sheds,or other structures which may be easily removed for maintenance ofthe water system may be allowed at the discretion of theAdministrator.
2. No trees may be planted in a public water or public utility easementwithout first obtaining approval of the Administrator. Trees may beallowed to the extent that damage to the water system does not occurfrom root intrusion and adequate access can be provided for maintenanceand repair vehicles.
XVIII. ABANDONMENT OF WATER MAINS AND SERVICES
A. Any existing water mains and service connections that will not be used mustbe abandoned and must be shown on the Improvement Plans withappropriate notation.
B. For all abandoned water services up to and including 2", annotate to removethe valve and saddle and install a full circle clamp on main under SpecialDistricts inspection.
C. For flanged or mechanical joint tees, annotate the Improvement Plans toremove the valve and install a blind flange or mechanical joint plug underSpecial Districts inspection.
D. For push-on tees, the tee, valve and concrete thrust block must be removedand the main repaired with approved pipe and suitable couplings, and sonoted on the Improvement Plans.
E. Valve boxes for abandoned valves must be removed and so noted on theImprovement Plans.
F. Abandoned mains, valves and risers located within any street structuralsection or within any new trench must be shown on the Improvement Plansto be removed.
G. Show all 12" diameter and larger water mains to be abandoned within thepublic right-of-way as removed or broken every 50' and filled with sand slurry.
H. Where a fire hydrant is to be abandoned, note that the hydrant barrel, break
- 19 -
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'offriser, and valveare,to,be removed, the'bury is to be,capped or plugged,,and the connection abandoned at main as stated above, Abandonments offire hydrants'must b~approved by the local,fire agency,
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APPENDIX A
DEPARTMENT OF PUBLIC HEALTH
CRITERIA FOR THE SEPARATIONOF WATER MAINS AND NON-POTABLE PIPELINES
21
Memorandum
Date: April 14, 2003 (Revised Date: October 16,2003)
To: Regional and District Engineers
From: David P. Spath, Ph.D., Chief (Original signed by Dave)Drinking Water and Environmental Management 601 North 7th Street, MS216
Sacramento, CA 95814(916) 322-2308
Subject: GUIDANCE MEMO NO. 2003-02: GUIDANCE CRITERIA FOR THESEPARATION OF WATER MAINS AND NON-POTABLEPIPELINES
The purpose of this memo is to update guidance dated April 5, 1983 forconsistency with proposed 2003 regulations. Should there be any modification tothe proposed Water Works Standards that may impact the content of this guidance,the guidance will be amended accordingly.
GUIDANCE: CRITERIA FOR THE SEPARATION OFWATER MAINS AND NON-POTABLE PIPELINES
BACKGROUND
When buried water mains are in close proximity to non-potable pipelines, thewater mains are vulnerable to contamination that can pose a risk of waterbornedisease outbreaks. For example, sewers (sanitary sewer mains and sewageforce mains) frequently leak and saturate the surrounding soil with sewage due tostructural failure, improperly constructed joints, and/or subsidence or upheaval ofthe soil encasing the sewer. If a nearby water main is depressurized and nopressure or negative pressure occurs, that situation is a public health hazardthat is compounded if an existing sewer is broken during the installation orrepair of the water main. Further, failure of a water main in close proximity to otherpipelines may disturb their bedding and cause them to fail. In the event of anearthquake or other disaster, simultaneous failure of all pipelines could occur.
The most effective protection against this type of drinking water contamination isadequate construction and separation of non-potable pipelines and water mains.The Waterworks Standards (Title 22, Chapter 16, Section 64572) provideseparation criteria for new construction. However, when these criteria cannotbe met, the risk of contamination can be reduced by increasing the structuralintegrity of pipe materials and joints, and ensuring minimum separation
22
requirements are met. Therefore, the following guidance details constructioncriteria for the installation of water mains and non-potable pipelines tominimize the risk of contamination of drinking water.
DEFINITIONS
• COMPRESSION JOINT - A push-on joint that seals by means of thecompression of a rubber ring or gasket between the pipe and a bell orcoupling.
• CONTINUOUS SLEEVE - A protective tube of high-density-polyethylene(HOPE) pipe with heat fusion joints or other non-potable metallic casing withoutjoints into which a pipe is inserted.
• DISINFECTED TERTIARY RECYCLED WATER - Wastewater that hasbeen filtered and subsequently disinfected in accordance with Section60301.230, Chapter 3 (Water Recycling Criteria), Title 22, California Code ofRegulations. .
• HOUSE LATERAL - A sewer line connecting the building drain and thesanitary sewer main serving the street.
• SUPPLY LINE - Pipelines conveying raw water to be treated for drinkingpurposes in accordance with Section 64572 @, proposed Water WorksStandards.
• WATER MAIN - Means any pipeline, except for user service lines, within thedistribution system in accordance with Section 64551.70, proposed Water WorksStandards.
• RATED WORKING WATER PRESSURE - A pipe classification system basedon internal working pressure of the fluid in the pipe, type of pipe material, andthe thickness of the pipe wall.
• SANITARY SEWER MAIN - A gravity sewer conveying untreatedmunicipal wastewater.
• SEWAGE FORCE MAIN - A pressurized sewer conveying untreatedmunicipal wastewater.
23'
APPLICABILITY
Note that the construction criteria presented in this document apply to house lateralsthat cross above a water main, but not to those house laterals that cross below a watermain.
Water mains or non-potable pipelines that are 24-inches in diameter or larger may posea higher degree of public health concern because of the large volumes of flowinvolved. Therefore, installation of water mains or non-potable pipelines 24-inches indiameter or larger should be reviewed and approved in writing by the Department on acase-by-case basis prior to construction.
REGULATORY REQUIREMENTS
Any new development project in which all the underground facilities are beingconstructed for the first time must comply with the following regulatory requirements:
Existing requirements:
Section 64630. mtle 22 CA Code of Regulations) Water Main Installation.(c) Water mains shall be installed at least:
(1) Ten feet (3 meters) horizontally from and 1 foot (0.3 meters) higherthan sanitary sewer mains located parallel to the main.(2) One foot (0.3 meters) higher than sanitary sewer mains crossing themain.(3) Ten feet (3 meters), and preferably 25 feet (7.5 meters), horizontallyfrom sewage leach fields, cesspools, seepage pits and septic tanks.
(d) Separation distances specified in (c) shall be measured from the nearestoutside edges of the facilities.
(e) Where the requirements of (c) and (d) cannot be met due to topography,inadequate right-of-way easements, or conflicts with other provisions of theseregulations, lesser separation is permissible if:(1) The water main and the sewer are located as far apart as feasible withinthe conditions listed above.(2) The water main and the sewer are not installed within the same trench.(3) The water main is appropriately constructed to prevent contamination ofthe water in the main by sewer leakage.
(1)Water mains shall be disinfected according to AWWA Standard C601-81before being placed in service.
(g) Installation of water mains near the following sources of potentialcontamination shall be subject to written approval by the Department on a case-
24
by-case basis:(1) Storage ponds or land disposal sites for wastewater or industrial processwater containing toxic materials or pathogenic organisms.(2) Solid waste disposal sites.(3) Facilities such as storage tanks and pipe mains where malfunction ofthe facility would subject the water in the main to toxic or pathogeniccontamination.
Although the following requirements have not yet been adopted, they shouldbe within the next two years and should be used as guidance for futureconstruction.
Proposed requirements as of the date of this document:
Section 64572. Water Main Separation(a) New water mains and new supply lines shall not be installed in the same trench
as, and shall be at least 10 feet horizontally from, and one foot vertically above, anyparallel pipeline conveying:
(1) Untreated sewage,(2) Primary or secondary treated sewage,(3) Disinfected secondary-2.2 recycled water (defined in section60301.220),(4) Disinfected secondary-23 recycled water (defined in section 60301.225),and(5) Hazardous fluids such as fuels, industrial wastes, and wastewatersludge.
(b) New water mains and new supply lines shall be installed at least 4 feethorizontally from, and one foot vertically above, any parallel pipeline conveying:
(1) Disinfected tertiary recycled water (defined in section 60301.230), and(2) Storm drainage.
(c) New supply lines conveying raw water to be treated for drinking purposes shall beinstalled at least 4 feet horizontally from, and one foot vertically below, any watermain.
(d) If crossing a pipeline conveying a fluid listed in subsection (a) or (b), a newwater main shall be constructed perpendicular to and at least one foot above thatpipeline. No connection joints shall be made in the water main within eight horizontalfeet of fluid pipeline.
(e) The vertical separation specified in subsections (a), (b), and (c) is requiredonly when the horizontal distance between a water main and pipeline is ten feet orless.
25
(f) New water mains shall not be installed within 100 horizontal feet of anysanitary landfill, wastewater disposal pond, or hazardous waste disposal site, orwithin 25 feet of any cesspool, septic tank, sewage leach field, seepage pit, orgroundwater recharge project site.
(g) The minimum separation distances set forth in this section shall be measuredfrom the nearest outside edge of each pipe barrel.
ALTERNATIVE CRITERIA FOR CONSTRUCTION
Water Mains. and Sewers and Other Non-potable Fluid-carrying PipelinesWhen new water mains, new sanitary sewer mains, or other non-potable fluid-carryingpipelines are being installed in existing developed areas, local conditions (e.g., availablespace, limited slope, existing structures) may create a situation in which there is noalternative but to install water mains, sanitary sewer mains, or other non-potablepipelines at a distance less than that required by the regulations [existing Section 64630(proposed Section 64572)]. In such cases, through permit action, the Departmentmay approve alternative construction criteria. The alternative approach is allowed underthe proposed regulation Section 64551 (c):
"A water system that proposes to use an alternative to the requirements in thischapter shall demonstrate to the Department how it will institute additional mitigationmeasures to ensure that the proposed alternative would not result in anincreased risk to public health."
Appropriate alternative construction criteria for two different cases in which theregulatory criteria for sanitary sewer main and water main separation cannot be met areshown in Figures 1 and 2.
• Case 1 - New sanitary sewer main and a new or existing water main; alternativeconstruction criteria apply to the sanitary sewer main.
• Case 2 - New water main and an existing sanitary sewer main;alternative construction criteria may apply to either or both the water main andsanitary sewer main.
Case 1: New Sanitary Sewer Main Installation (Figures 1 and 2)
Zone Special Construction Required for Sanitary Sewer MainA Sanitary sewer mains parallel to water mains shall not be permitted in this zone
without prior written approval from the Department and public water system.
B If the water main paralleling the sanitary sewer main does not meet the Case 2Zone B requirements, the sanitary sewer main should be constructed of one of thefollowing:
26
1. High-density-polyethylene (HDPE) pipe with fusion welded joints (perAVWVA C906-99);
2. Spirally-reinforced HDPE pipe with gasketed joints (per ASTM F-894);
3. Extra strength vitrified clay pipe with compression joints;
4. Class 4000, Type II, asbestos-cement pipe with rubber gasket joints;
5.. PVC sewer pipe with rubber ring joints (per ASTM D3034) or equivalent;
6. Cast or ductile iron pipe with compression joints; or
7. Reinforced concrete pressure pipe with compression joints (per AWWAC302- 95).
C If the water main crossing below the sanitary sewer main does not meet therequirements for Case 2 Zone C, the sanitary sewer main should have nojoints within ten feet from either side 'of the water main (in Zone C) andshould be constructed of one of the following:
1. A continuous section of ductile iron pipe with hot dip bituminous coating;or
2. One of the Zone D options 1, 3,4, or 5 below.
D If the water main crossing above the sanitary sewer main does not meet the Case 2Zone D requirements, the sanitary sewer main should have no joints within fourfeet from either side of the water main (in Zone D) and be constructed of one ofthe following: .
1. HDPE pipe with fusion-welded jOints (per AWWA C906-99);
2. Ductile iron pipe with hot dip bituminous coating and mechanicaljoints (gasketed, bolted joints);
3. A continuous section of Class 200 (DR 14 per AWWA C900-97) PVC pipe orequivalent, centered over the pipe being crossed;
4. A continuous section of reinforced concrete pressure pipe (per AWWAC302- 95) centered over the pipe being crossed; or
5. ,'Any sanitary sewer main within a continuous
sleeve.
Case 2: NeWwater mainslnstaHation(Figures~:1and2),ZoneSpecialConstruction Required for Water Main '
A No.watermains parallel to>sanitary ~ewerimajns shall be constructed ,without priorwritten approval from the Department.
.. " '. '" : .." ,L _ Ii ,h ,;... "I"". ' ; ..<j
B If the sanitary sewer main paralleling the water main does not meet the Case 1.Zone Brequire~ents, the wc:lter~,m~inshould be constructed of one of the following:
o.~o.' HDPE pipe,with'.fusion~",!etdedjoints'(per'AWY'JA,C906-99);
2. Ductile iron'pipewit~ hot:dip bitumil)ouscoating; -,
3.',' Dipped and wrapped one-Jourth-inch-thickweldedsteel'pipe;,.o .,\ '
4. Class 200, Type II, asbestos-cement pressure pipe;
t" ., - _ ro'" > :. •••••• ~. r~ ,}',~t"~",;) '., ",' i ;~:;.-;"""J . i.'.'!l';'
.5.:: Class 20p pr~ssure [ated,P,¥C wate~ pipeXo'R:~14,p'er,AWV'.JA:C900:97&C_905-:97);Or equiyalent;or ',; i~ ' •.,~J;","
: ~..,~L", • . ~\.) I.,:' _"~i') "i:,~", '1' p.' '16. Reinforced concrete pressure 'pipe, steel cylinder type, per. AWIVA (C300~97 or C302-99 or,C303-95). ~o.' •
~ ~.~ •. ,.f~... #.~ - •• " ".,"! ''!- ,_ ,-9. to",.,. ,'I ".It
C If the sanitary sewer main crossing above the water main does not meet the Case 1Zone C requirements, tJ:1e"watermain should have ,no joints within.ten feet
.. "o.' , .••• .. from <o.'.. " .. • .. j , H
.either side of the water main ,(in Zone,C) and be constructed .of one of theT" - ~.,;- .iI' ~ ," .. " ~ ','" " ~ ,,"'.' ' .. ," • ~ ~_..'.:: _.~"'Io-,r,: .. - :', <:';_ , '-~_'. • ._.f , .• ', ," ,"" , ',J; "o. -~, - ",~o. ._ •• following:' ..:~~;~' , -, -,. "
, "-' '. {, • ~ r J ...•' .~-.~ • ,~. J:' ~,'.....~, '" ) _ "
, .", ~'-._~\ ' .•. ~', .'~'~' ,of\r : .,,:,,_,<;_,pJ.'" .' r ,-',,, .:;i-1~•. _ ,: ~ .1.' HDPE 'pipe with fusion-welded joints '(pe'r'AWNA C906-9~);
2. Ductil~ironpipe with hol.dipbituminous"coating;• -, ,'""""" .' ~~.'~ JT -' ~" •• ", '~.
3. ,Dipped and \Vrapp~d.onE!-fou'1h-inc~-t~i,<?~we~ded steel pipe;_ - .. : f ':' _,' ,.~ -- ,-' ." f--I' • -" ';;" -, -, p
-i, .,' -. ',' , 'o.' ,~, 'I o.~o., \4. Class 200 pressure rated PVC water pipe (DR 14 per AV\NVAC900-97 &C99~-~7);,C?r' " :,';' i,:?o.r> . ljl"":"'~\i; ~'f' x.:, .
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5. Reinforced concrete pressure pipe, steel cylinder type, per" .• AV\NVA(C300.;97 orC301-99or 0303'-95): -;" f'?;' ",. " 1 "
,:'~ ~,~ ~~ ~:"'J .•~ ~ ~ ."'~ "''t. ,.~,' ~ \ ~~-£! .~~t;.
D If the sanitary sewer main crossing below the water main does not meet therequirements for Case 1 Zone D; the water main'should have' no'jolnts' withineight feet from either side of the sanitary sewer main (in Zone D) andshould be constructed as for Zone C.
28
Water Mains and Pipelines Conveying Non-potable Fluids
When the basic separation criteria cannot be met between water mains and pipelinesconveying non-potable fluids, the requirements described above for sanitary sewermains should apply. This includes the requirements for selecting special constructionmaterials and the separation requirements shown in Figures 1 and 2. Note that not allconstruction materials allowed for sanitary sewer mains will be appropriate for othernon-potable fluid lines. For example, certain plastic lines may not be appropriate forthe transport of some fuel products. The selection of compatible materials ofconstruction for non-potable fluids is a decision to be made by the project engineer.
Water Mains and Sewage Force Mains
• Sewage force mains shall not be installed within ten feet (horizontally) of awater main .
• When a sewage force main must cross a water main, the crossing should beas close as practical to the perpendicular. The sewage force main should be atleast one foot below the water main.
• When a new sewage force main crosses under an existing water main, and aone-foot vertical separation cannot be provided, all portions of the sewage forcemain within eight feet (horizontally) of the outside walls of the water mainshould be enclosed in a continuous sleeve. In these cases, a minimum verticalseparation distance of 4 inches should be maintained between the outsideedge of the bottom of the water main and the top of the continuous sleeve.
• When a new water main crosses over an existing sewage force main, thewater main should be constructed of pipe materials with a minimum ratedworking pressure of 200 psig or the equivalent.
Water Mains and Tertiary Treated Recycled Water or Storm Drainage
The basic separation criteria for water mains and pipelines conveying tertiary treatedrecycled water or storm drainage lines are a 4-foot horizontal separation where lines arerunning parallel and a 1-foot vertical separation (water line above recycled or stormdrainage) where the lines cross each other. .
When these criteria cannot be met, the Zone A criteria apply where lines are runningparallel, and the Zone C and Zone D criteria apply where the lines cross each otheras shown on Figures 1 and 2. For these situations, the Zone "P" criteria are in effectand prohibit construction less than 1 foot in parallel installations and less than 4inches in vertical (crossing) situations.
29
For tertiary treated recycled\vaferand storm drainage lines, the Zone B criteria(requirements for special pipe) do not apply as the basic separation criteria is a four-foothorizontal s'epar'ation criteria for parallel lines. The tertiary treated recycled water lines I
should be constructed. in accOrdanafwith the color-coding, and labeling requirementsper Section 116815; California Health and Safety Code of Regulations.:
• I ~'.~ • " •. '
MISCELLANEOUSGUIDANCE ,'"
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• More stringent requirements>maybe necessary if conditions such as high 'groundwater exist. HDPEor. similar.pipe"mayoe required ,to provide flexibility,to move without potential joint leaks
" •..•..... -..~• Sanitary sewer mains should not be installed within 25 feet "ho'rizontally of a low
head '(5 psig or less pressure) 'water main. ,...l "1, "
• New water mains and sanitary sewer mains should be pressure tested in. a~corda~ce with 'manufacturer's specifications,t't' "
• f ~ ,~ .. _ •.••••. ( • } _ •••. J l _, '~~
• When installing water mains, sewers, or..other pipelines,',measures should betaken to prevent or minimize disturbances of existing pipelines. Disturbanceof the conduit's supporting base could eventually result in pipeline failure.
, t.. "\- ~ c. ~ ~ ..~ • N
.Special consideration should be given to the, selection of pipe materials if corrosive,:.,.. conditions-are Iikelyto,exist.!Theseconditionsmay,be due to soil ,type ,and/or the_' .j'nature oUhe fluid conveyed in the conduit, such as a septic sewage producing
corrosive.hydrogen sulfide~t ~'>. ,.
NOTE: Dimensions are fromthe,outside of the water main to the outside of the otherpipeline,man.hoie, or,~!~e~e_:' ,!_~ r- . '" ' . ,.,' ",I, .' '.' ' ,
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1'I6URE I PARA:llEI. CONS'I'RUCTION
Not To kale
CASE INEW SEWER MAIN
CASE 2NEW WATER MAJN
9ft
Zlme~ "P" i5;aprohibited ZODe.Sediun 6i6SO (0;:) (2) Calliemlia Code otRe~ti.OD5, Title 22(Cuaerd); or Section64S72 (;a)California CodeOf~N, TiiJe22 f'ropo~d) .•
31
CASE 1: NEW SEWER MAIN
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4in
6ft
t-4 in
1ft .'
1ft
NEW WATER MAIN,'~~?<'C}••SE 2:',0;" .••: ~,~
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32
.~
APPENDIX B
WATER SYSTEM CONSTRUCTJON
STANDARD SPECIFICATIONS
WATER SYSTEM CONSTRUCTION STANDARD SPECIFICATIONS
SECTION 1. WATER MAIN CONSTRLJ~110N,,0,
r -I.,
1-1.01 DescriptionConstruct all water mains and related appurt~nances in.acC()rdan~ with the Lake County(County) Standard Plans and Standard Construction Specifications for Public Improvements.
1-1.02 Pipe . .. . ,.. '~.' .The pipe except where otlieiwise specified on the plans' can either be Ductile Cast Iron orPolyvinyl Chloride (PVC) all in accordance with the following:
Ductile Iron Pipe shall be cement lined, new pipe conforming to AWNA Standard C151,pressure class 350. The pipe shall be furnished with either bell and spigot end, ''Tyton Joints" ormechanical joints except where otherwise specified on the plans.
Polyvinyl Chloride (PVC) Pipe shall be new pipe, minimum class 150, or as shown on the plansand conforming to the requirements of AWNA Standard C900 "Standard for Polyvinyl ChloridePressure Pipe, 4 inch through 12 inch for Water. Polyvinyl Chloride (PVC) pipe for 16" diameterwater mains shall be new pipe conforming to the requirements of AWNA standard C-905 DR-25, minimum pressure rating 165 or as shown on the plans.
An affidavit shall be provided that all delivered materials comply with the requirements ofAWNA Standard C900/C905and these specifications.
1-1.03 (Intentionally Left Blank)
1-1..04 Fittings
All fittings shall be new gray iron or ductile iron fittings conforming to ANSI/AWNA C110/A21.1 0or new ductile iron compact fittings conforming to ANSI/A WNA C153/A21.53 of latest revisionand shall be compatible with the type and pressure class of pipe used.
All exposed nuts, bolts and threads (except stainless steel) shall be painted withBitumastic paint or approved equal after nuts are tightened.
1-1.04a Restrained Joint Fittings
Restrained joint fittings shall be ductile iron in accordance with the applicable requirements ofANSI/ AWNA C111/ A21.11 and ANSI/ AWNA C153/ A21.53 of latest revision and shall becompatible with the type and pressure class of pipe used.
1-1.05 Gate Valves
Gate valves shall conform to AWNA Standard C509 of latest revision and shall be the resilientseat type with non-rising stem opening counter-clockwise with O-ring stem seal and suitableends for connection to the type of pipe or fitting used. The working pressure rating of gate
34
valves shall meet or exceed the pressure rating of the pipe specified on the plans. External boltsand nuts shall be 304 stainless or poly wrapped per standard.
1-1.06 Butterfly Valves
Butterfly valves shall be flanged or mechanical joint type only and shall conform to AWNAStandard C504 of latest revision and shall be of the rubber seat type. Valve discs shall rotate 90degrees from the full open position to the tight shut position. The valve seat shall provide a tightshutoff at a pressure differential of 150 psi - upstream and 0 psi- downstream in either direction;the valve operator shall be the traveling nut type. Valve shall open with a counter-clockwiserotation of the operating nut.
1-1.07 Valve Boxes, Vaults and Pits
Each gate valve shall be covered by a precast 8" valve box (G-5 Christy) set flush with streetsurface with cast iron ring and cover marked 'WA TERti.
All meter boxes, vaults and pits shall be bedded on 3" minimum thick, 3/4" drain rock, or otherclean material with typical sand equivalent of 20 minimum, uncontaminated by native soil,against compacted or undisturbed base. The gravel bed shall extend to a4" minimum beyondall sides of the meter box. Box shall be set flush with top of curb, sidewalk or ground, whicheveris applicable. Addresses must be clearly marked on top side lip of meter box with a permanentmarking pen.
Meter boxes and vaults shall be set so that the reading lids are aligned over the meter registersas closely as possible.
1-1.08 Locating and Adjusting Water Valve Boxes
After a street has been paved, mark the location of all water valve boxes in white paint beforethe close of that work day.
Within 48 hours of paving, adjust all water valve boxes up to grade.
1-1.09 Fire hydrants and Lateral Assembly
At the location(s) shown on the plans, the Contractor shall provide and install a fire hydrant andlateral assembly in accordance with County Standard 857.
No bends are allowed in fire hydrant laterals without approval of the Administrator.
Fire hydrants serving one and two family residential use have one 2-1/2 inch outlet and one 4-1/2 inch outlet. Fire hydrants serving commercial and multi-family residential uses have one 2-1/2 inch outlet and two 4-1/2 inch outlets.
Paint all hydrants in accordance with County Standard 857.
Before a public fire hydrant may be placed in service, a high velocity flushing of the hydrantlateral shall be witnessed and approved by Special Districts personnel.
35
1-1.10 Asbestos Cement Pipe
The installation of asbestos cement pipe is prohibited. All cutting, handling and disposal ofasbestos cement pipe shall be done in compliance with the Contractor's State Licensing Lawand all applicable laws and regulations.
1-1.11 Excavation, Backfill, and Resurfacing
All trenching, backfill and resurfacing required for installation of water system facilities shall bein accordance with County Standard 313.
All stumps and large roots encountered during trenching operations shall be removed to thesatisfaction of the Administrator.
The trench shall be opened sufficiently ahead of the pipe laying operations to revealobstructions. Trench crossings shall be provided as necessary to accommodate public traveland to provide convenient access to adjacent properties. Flow shall be maintained in anysanitary sewers, storm drains, water lines, or water courses encountered in trenching.When the public works involved will exceed an estimated $25,000 for the excavation of anytrench or trenches five feet or more in depth, the Contractor shall, except for subdivisions,submit to the Administrator for acceptance in advance of job excavation, a detailed planshowing the design of shoring, bracing, sloping, or other provisions to be made for workerprotection from the hazard of caving ground during the excavation of such trench or trenches. Ifsuch plan varies from the shoring system standards established by the construction safetyorders, the plan shall be prepared by a registered civil or structural engineer. A permit to do theabove described work must be obtained from the State of California, Division of IndustrialSafety. Proof of such permit shall be submitted to the Administrator prior to starting the trenchwork.
Excess Material from excavation shall become the property of the Contractor and shall belawfully disposed of to the satisfaction of the Administrator. Prior to disposal of any materials oroperation of any equipment on sites provided by the Contractor for disposal of excess trenchexcavation owned by him, the Contractor shall submit to the Administrator written authorizationfor such disposal of materials and entry permission signed by the owners of the disposal siteand the required permits.
1-1.12 Laying and Handling Pipe Materials
Proper implements, tools, and facilities satisfactory to the Administrator shall be provided andused by the Contractor for safe, convenient, and workmanlike prosecution of the work.Start excavation by exposing end of existing pipe to determine its line and grade. Start layingnew pipe 8-10 feet from the existing and install new pipe at or below the minimum depthspecified in Section VIII-B of the Water System Design Standards. Elbows and ductile iron pipeshall be used to make grade adjustments as needed during tie-in operations.
All pipe fittings and valves shall be carefully lowered into the trench in such a manner as toprevent damage to pipe coatings. Under no circumstances shall pipe or accessories be droppedor dumped into the trench. Before lowering and while suspended, the pipe shall be inspected fordefects and the cast iron pipe rung with a light hammer to detect cracks. Any defective,damaged, or unsound pipe shall be rejected and sound material furnished. Cutting of pipe for
36
inserting valves, fittings, or closure pieces shall be done in a neat and workmanlike mannerwithout damage'to pipe. All pipe stockpiled on the job shall be stored with the ends covered toprevent the entrance of foreign matter.
Whenever it is necessary either in vertical or horizontal plane, to avoid obstructions or whenlong radius curves are permitted, the amount of deflection shall not exceed the maximumrecommended by the pipe manufacturer or that required for satisfactory jointing.
Each length of pipe shall be free of any visible evidence of contamination, dirt, and foreignmaterial before it is lowered into its position in the trench, and it shall be kept clean by approvedmeans during and after laying. At times when pipe laying is not in progress, the open ends ofany pipe which have been laid shall be closed by approved means to prevent the entrance ofsmall animals or foreign material. Trench water shall not be permitted to enter the pipe.
1-1.13 Laying P.V.C. Pipe
Individual pieces of pipe, valves, and fittings shall be joined by placing the rubber rings on themachined ends of the pipe and pulling the couplings, valves, or fittings in accordance with themanufacturer's recommendations. The rings shall be checked to be sure they are in the properposition after the coupling is in place. Care shall be taken to insure proper seating of the rings,and adapters shall be utilized for connections as required by the manufacturer.Fittings for P.V.C. pipe shall be the mechanical joint type.
No. 10 insulated copper wire shall be laid on top of and along entire length of all new pipes andshall be extended to the surface at all valve locations, blow-offs, and meter boxes sufficiently forlocator equipment to be attached. Fasten the wire to the top of the pipe so as not to bedisplaced by backfilling procedure. One method of accomplishing this is to affix the wire to thetop of the pipe with duct tape at approximately 10 feet intervals.
1-1.14 Laying of Ductile Iron Pipe
Ductile iron pipe shall be as specified in and installed per AWWA C600 of latest revision and inaccordance with the manufacturer's recommendations.
Flame cutting of pipe by means of oxyacetylene torch is not allowed.
1-1.15 Service Connections
Service connections other than those shown or noted on the plans shall not be installed prior toobtaining Special Districts' approval. Service connections encountered in construction that willnot be used shall be abandoned.
1-1.16 Thrust Blocking
All tees, bends, and plugs shall be provided with thrust blocks in accordance with CountyStandards 853 and 854.
1-1.17 Abandoning Water System Components
For all abandoned water services up to and including 2", remove the valve and saddle andinstall a full circle clamp on the main under Special Districts' inspection.
37
For flanged or mechanical joint tees, remove the valve and install a blind flange or mechanicaljoint plug under Special Districts' inspection.
For push on tees, the tee, valve and concrete thrust block must be removed and the mainrepaired with approved pipe and suitable couplings.
1-1.18 Hydrostatic Test
The test shall be performed after the water system has been laid and all backfill placed andcompacted as specified elsewhere in these specifications. The Contractor. at his option, maytest the pipe at any time during construction. However, the final test for acceptance shall bemade only after all backfill is in place.
Pressure testing against valves is not allowed unless authorized by the Administrator.Valves on existing pipes in service shall be operated only by District forces.
Each section of pipe shall be slowly filled with water and the specified test pressure shall beapplied by means of a pump connected to the pipe in a satisfactory manner. The pump, pipeconnection, and all necessary apparatus including gauge and measuring devices shall befurnished by the Contractor. The Contractor shall make the taps into the pipe and shall furnishall necessary assistance for conducting the tests. Before applying the test pressure, all air shallbe expelled from the pipe. To accomplish this, taps shall be made, if necessary, at the points ofthe highest elevation, and afterwards tightly plugged.
Each valved section of pipe, or combined sections, as approved by the Administrator, shall besubjected to a hydrostatic pressure of not less 50 psi above working pressure and not less than150 psi at any point on the pipe. The duration of each pressure test shall be thirty minutes.
Suitable means shall be provided by the District for determining the quantity of water leakageunder test pressure. No pipe installation will be accepted until or unless this leakage is lessthan 40 U.S. gallons per 24 hours, per mile of pipe, per inch nominal diameter of pipe.
Should any test of combined or individual sections of pipe disclose leakage greater than thespecified limit, the Contractor shall, at his own expense, locate the cause and repair the defectuntil the leakage is within the specified allowance.
Leakage is defined as the quantity of water to be supplied into the newly laid pipe, or any valvedsection of it, necessary to maintain the specified leakage test pressure after the pipe has beenfilled with water and the air expelled. The Administrator shall designate the time at which thetests shall be made.
The Contractor shall repair any obvious leaks even though the hydrostatic test results are withinthe prescribed limits above.
1-1.19 Chlorination of Pipeline
Chlorine may be applied by any of the standard methods, subject to the approval of theAdministrator. The point of application of the chlorinating agent shall be at the beginning of thepipe extension, or any valved section of it, and through a corporation stop inserted in the newlylaid pipe.
38
Water from the existing distribution system shall be controlled to flow very slowly in the newlylaid pipe during the application of chlorine. Precautions shall be taken to prevent back pressurecausing a reversal of flow into the pipe being treated. In the process of chlorinating, all valvesand other appurtenances on the new pipe shall be operated in such a way as to provide that thechlorine mixture shall be fully distributed to all parts of the new water system. Valves on existingpipes in service shall be operated only by District forces.
The rate of chlorine feed shall be in such proportion to the rate of water entering the pipe thatthe chlorine dose applied to the water entering the newly laid pipe shall be at least 100 ppm.
The chlorine mixture shall be retained in the pipe for a period of twenty-four hours. After thechlorine mixture has been retained for the required time. the chlorine residual at the pipeextremities and at representative points shall be at least 5 ppm.
Following chlorination, all chlorine mixture shall be thoroughly flushed from the new pipe.Chlorinated water used to disinfect the pipe is the property of the Contractor and its disposal isthe responsibility of the Contractor. Chlorinated water used to disinfect the pipe shall bedisposed of in accordance with all laws and regulations.
The following criteria must be met prior to disposal of chlorinated water to storm sewers or otherinland waterways:
• Water to be disposed of must contain no chlorine residual.• pH must be between 6.5 and 7.5.• Central Valley Regional Water Quality Control Board must be notified of discharge.
Discharges not meeting the above criteria may be allowed to be disposed of into the sanitarysewer system. but must first meet the following requirements:
• The Contractor must obtain permission from Special Districts. (707) 263-0119, prior tothe discharge being disposed of in the sanitary sewer system. The payment of any feesrequired will be the responsibility of the Contractor.
• The pH of the water must be between 6.0 and 9.5.
Should the initial treatment, in the opinion of the Administrator, prove ineffective. the chlorinationprocedure shall be repeated until confirmed tests show that the water sampled from the newlylaid pipe conforms to the above requirements.
The initial bacteria samples will be taken and tests made by Special Districts. There shall be a24 hour waiting period after blowing off the pipe prior to taking bacteria samples. If the initialbacteria test fails, two consecutive passing bacteria tests must be obtained prior to making thetie-in. If additional testing is required, it will be necessary for the contractor to arrange for and topay for the tests at a State of California certified laboratory. In extreme cases, at the discretionof the Administrator it may be necessary to require, at the contractor's expense, a complete Title22 potable water test prior to tie-in.
Bacteria tests are valid for 30 days. If there is more than a 30 day lapse between a bacteria testand the applicable tie-in, the bacteria test must be repeated prior to performing the tie-in.
39
1-1.20 Water Main Connection Work
Upon completion of construction, final connection will be made by the Contractor underinspection by a Special Districts Representative, unless otherwise specified on the plans.The Contractor shall notify the District inspector 48 hours prior to individual mainline shutdownsrequired to facilitate a tie-in. The contractor shall schedule tie-in work with the Administrator orthe Deputy Administrator at (707) 263-0119. Tie-ins will not be scheduled until a written passingbacteria test has been received by Special Districts Administrator. All shutdowns and valveturning operations shall be performed by District personnel only. An inspector must be presentduring all tie-in operations. No tie-ins shall be performed without prior authorization of theAdministrator.
Contractors or parties who fail to keep field appointments shall be billed for scheduled SpecialDistricts crew waiting or standby time which was used and the contractor shall bear the costsincurred by Special Districts for notification of its customers for the subsequent appointment.
As a general rule, customer service shall not be terminated or interrupted on Fridays.Interruption of service to commercial customers shall, as much as practical, be coordinated withthe customer's needs. Special Districts will contact the customers, consider the customer'sinterests and inform the Contractor accordingly.
After hours work or weekend work is to be avoided whenever possible and any overtime costsshall be borne by the contractor requesting such after hours work. Normal working hours are:8:00 A.M. to 4:30 P.M.
Contractors or parties requiring work of any kind by Special Districts' forces shall request suchservices a minimum of 48 hours in advance of the time such services are desired.
Work requests, which will involve Special Districts forces for more than 8 hours or an extensivenumber of District supplied parts, shall be requested a minimum of 7 calendar days in advance.If it is necessary to terminate service to any customer, the contractor shall make the request forsuch work an additional 72 hours (three additional working days for a total of five working daysadvance notice) in advance of the time such services are desired to allow the customersaffected to have a minimum 72 hour notice.
When installing a cut-in-tee that is larger than the existing pipe, the new assembly must beinstalled at the depth sufficient to allow the valve to remain below the subgrade of the streetwhich may necessitate lowering the existing pipe.
When a connection is required to an existing water pipe, the contractor shall provide allexcavation, shoring, backfill and trench resurfacing per County Standard 215. Where theconnection is to be a "hot tap", the contractor shall provide and install the tapping valve andsleeve, and any other hardware required and make the tap at the developer's expense.
When any joint on an existing water pipe is disturbed, that joint and any proposed hot tap 4" andlarger, shall be replaced with a "cut-in" tee. When a "cut-in" tee and valve(s) assembly isrequired on the plans, the contractor shall provide and install the entire assembly (includingvalves), and any other hardware necessary under Special Districts' inspection, and shall provideall other work and materials necessary to complete the installation to County Standards.
40
During the work, the Contractor shall exercise all necessary precautions to prevent the entr~nceof trench water or any other foreign material into the water main and shall conduct all operationsin accordance with the most stringent sanitation practices. The interior of all ~ppurtenances .being installed shall be thoroughly swabbed with a strong high test hypochlonte (HTH) solutionprior to installation.
Tie-in or cut-in tee connections to cast iron, PVC, or ductile iron pipes shall be made withmechanical joint solid sleeves. Flexible connections shall only be used when connecting toasbestos cement pipe.
Pipe and fittings furnished for tie-ins shall be no smaller than the existing water main to whicheach tie-in is made. .
1-1.21 Water System Component Reporting
The Contractor shall submit the material type, manufacturer and model number of all watersystem components to the District inspector prior to final testing.
1-1.22 Construction Water
Un-metered connections are not permitted to the County water system, including connectionsbypassing meter for testing onsite plumbing or for obtaining construction water.
When a subdivision water main has been accepted and tied-in the individual curb stops will belocked off with cable ties. Cutting off or tampering with the cable ties will constitute a straight tie-in connection. Such connections will be severed by Special Districts and will result in penaltiesincluding payment of fines and estimated water usage fees.
Construction water shall be obtained from the County water system only at the point(s)designated by the Administrator. A deposit for each meter will be required which is refundableupon removal of the meter by District forces, less any charges for water used.
Contractors are prohibited from operating gate valves or fire hydrants on the County system.Use of water obtained from unmetered fire hydrants or other facilities is a violation of Countyordinance and State law. Use of construction water from sources other than the County WaterSystem must be approved by the Administrator.
41
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AppendixC
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BACKFLOW DEVICE REQUIREMENTSFOR SPECIFIC TYPJ=S.91?USE
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42
, '.
BACKFLOW DEVICE REQUIREMENTS
APPLICATION Device TypeAuto Sales, Painting, Repair, Radiator work RP
Auxiliary Water Supply (Contaminated Wells, etc.) RP
Auxiliary Water Supply - Non Hazard DC
Auxiliary Water Supply (with 2 or more CountyDC/RP
Water Connections to Site)Barber Shops RP
Blood Banks RP
Boiler Systems (any) RP
Buildings with Booster Systems DC
Buildings with 3 or more Stories or with fixtures 30 feetRP
above the serviceBuildings with Sewage Ejectors AG/RP
Buildings with Storage Tanks DC/RP
Homes with Sewage Lift Stations RP
Car Wash AG/RP
Cement, concrete, Sand & Gravel Plants RP
Chemical Storage or Processing Facilities AG/RP
Convalescent Home or Long Term Care Facility RP
Dairy or Cold Storage RP
Film Processing RP
Fire Systems - Business/Residential sprinklers with or DC w/Det.Ck.
Gas Stations RP
Gray water system RP
Heating & Air Conditioning (if using water) RP
43
Hospital or Medical Facility RP
Irrigation System DC or PVB
Irrigation System with Chemical Feed RP
Laboratories (commercial or research) AG/RP
Laundry or Dry Cleaning RP
Manufacturing of Processing (using toxic chemicals) AG/RP
Medical or Dental Facility RP
Mobile Home Park DC
Ornamental Pools, Ponds, Fountains RP
Painting, Auto Shops RP
Printing Shops RP
Radiator Shops RP
Radioactive Materials AG/RP
Restaurant RP/DC
Restricted or Classified Facilities AG/RP
Schools RP
Sewage or Storm Drain Facilities AG
Spray Rigs AG
Steam Cleaning Equipment RP
Steam Generation AG/RP
Swimming Pools AG
Tank Trucks or Chemical Spray Rigs AG
Veterinary Clinics - RP
Warehousing & Storage DC/RP
AG =AlrGapDC= Double CheckRP= Reduced PressureDCwi Det. Chk. = with Detector CheckPVB= Pressure Vacuum Breaker
44
ENGINEER'S LIST OF APPROVED ITEMSFOR USE WITH WATER SYSTEM CONSTRUCTION
STANDARDS
- EFFECTIVE: AUGUST, 2013
Residential(All 1~2%"& 1-4%" outlet)Clow F-75Clow F-950
Standard 857 - Fire Hydrant and LateralHydrants
Commercial(All 1-2%" & 2-4 %" outlet)Clow 865
Hydrant Break-Off Check Valve AssemblyClow #40Long Beach LB400
CoatingsBenjamin Moore & Co. DTM Acrylic Gloss Enamel, M28Kelly Moore DTM Acrylic Gloss Enamel, 5780Sherwin Williams DTM Acrylic Coating, B66-100
Standard 858 - Typical Pumper Connection Detail .Low Profile Hydrant
(1- 2%" & 1-4%" outlet)Clow F-94
Hydrant Break~ Check Valve Assembly (see Std 857)Clow #40Long Beach LB400
CoatingsBenjamin Moore & Co. DTM Acrylic Gloss Enamel, M28Kelly Moore DTM Acrylic Gloss Enamel, 5780Sherwin Williams DTM Acrylic Coating, B66-100
B11-777WJ-1900W
6101WB-20200
Standard 861 - Blow-Off With Harness2" Brass Ball Valve (FIP X FIP)
FordJonesMcDonaldMueller
3" Brass Ball ValveWatts Series B-6000
Boxes & Covers
II Size I Location Box Number Cover Number
2"&3" Traffic Christv B1324 Christv B1324-61JH
2"&3" Nontraffic Christy B30 Christy B30DQuazite PG1324BA12 Quazite PG1324WA50
45
Series B-6000
- ""; ~. 1 \'
Standard 862 • 8" Blow-off' ':"1 ff .....' '.2" Brass Ball Valve (FIP X FIP)
Ford B11-777WJones J-1900WMcDonald 6101WMueller B-20200
3" Brass Ball ValveWatts
Boxes & Covers,e
Size Location Box Number '. Cover Number,.
8" Traffic Christy B2436 '. , •• ': t ~"ot-.-."Christy B2436-62JH ,
Ouazite PG2436BA 18 'Ouazite PG2436WAP250
8" Nontraffic , Christy 640 Christy640DOuazite PG2436BA 18 Ouazite PG2436WAP250
<~.'Standard 863 • 3/4" & 1" Water Service Lateral For 5/8" x 3/4"
Angle Meter Ball Valve-Street Side (Compression x Meter Swivel Nut)3/4" or 1"
&',1~'Meters
Ford
JonesMcDonaldMueller
BA43-332W-0 - 3/4"BA43-444W-Q - 1"
J-1963VVSG4602BO
B-24258
! '
, ~.",,-.Angle Meter Ball Valve-Property Side (FIP x Meter Swivel Nut) :1,'
3/4" or 1"Ford
JonesMcDonaldMueller
8A13-332W-Q 3/4"BA13-444W-Q 1"
J-1966W .•46048
B-24265 ' .
\,'" ... .~
Corporation Stop (A'l/lNJAiCC Taper Thread Inlet x Compression.CTS)3/4" or 1"
Ford
J969
Tapping Service Saddle• C-900 Pipe
Ford
JonesMcDonaldMueller
.' Jones 'e •••
McDonald'Mueller
FB1000-3-Q.3/4"FB10004-0 _1"
J-3401SG4701BO
B-25008
202BSFC202._FS303
.• 3845&3846DE 2 S Series
BR2 S Series
46
Romac 202B
Smith-Blair 317202N
393
Ductile Iron PipeCascade CS22Ford FC202
FS303McDonald 3825 & 3826Mueller DE 2 S Series
BR 2 S Series
202NRomac 202B
Smith-Blair 317
Existing ACPFord .FC202McDonald 3825 & 3826Mueller DE 2 S Series
BR 2 S SeriesRomacSmith-Blair
202N317
Meter Boxes and Covers
Probe - 1 3/4 hole In meter box cover.
Size Location Box Number Cover Number
5/8" x 3/4" Traffic BES C1017 BES C1017GHChristy B1017 Christy B1017-61GHQuazite PG1324BA12 Quazite PG1324HAP250
5/8" x 3/4" Traffic *Probe BES C1017 *BES C1017GHChristy B1017 *Christy B1017-61GHQuazite PG1324BA12 Quazite PG1324HAP250
5/8" x 3/4" Nontraffic Christy B12 Christy B12CQuazite PG1118WA050
Quazite PG1324BA 12 Quazite PG1324WAP250
5/8" x 3/4" Nontraffic Christy B12 Christy B12PCW.Probe *Quazite PG1118WA050
Quazite PG1324BA12 *Quazite PG1324HAP250
1" Traffic BES C1324 BES C1324GHChristy B1324 Christy B1324-61GHQuazite PG1730BA12 Quazite PG1730HAP250
1" Nontraffic BES C30 BES C30EChristy B30 Christy B30E
Quazite PG1324WAP250Quazite PG1730BA12 Quazite PG1730WAP250
1" Traffic BES C1324 *BES C1324GH*Probe Christy B1324 *Christy B1324-61GH
Quazite PG1730BA12 *Quazite PG1730HAP250
1" Nontraffic BES C30 BES C30PEW*Probe Christy B30 Christy B30PEW
*Quazite PG1324WAP250Quazite PG1730BA12 *Quazite PG1730WAP250
* "
47
Standard 864 - 1" Dual Water Service lateralU-8ranch Assembly (Compression x MIP)
Ford UVB43-42WFPOJones J-2613SGMcDonald 08UOMMueller H-15363
Angle Meter 8all Valve (FIP x Meter Swivel Nut)3/4"
Ford 8A 13-332WJones J-1966WMcDonald 46048Mueller 8-24265
\. \. ~.••...
" •..",:
, .
',f. -, I ".
Meter Boxes &C6vers .- .
JSize Location 80x Number' :-..', , ~ r_ Cover Number
1" Traffic Requires two (2) single boxes. Refer toStd. 863
- ,.Nontraffic 8ES C24
'" ;;,
8ES c24E1" ..• Christy 824 ~~". ! Christy' 824E
. *Probe ..:.....; ,. . - .. ." *Christy,824-61EP, \ '~. , . I Ouazite .PG1819WA0150~ ..'. . ..
*Probe - 1 3/4" hole In meter box.
" . \,Standard 865 ; 2" Water Service Lateral For 2" or 1 'Yz" Meter
2" Straight 8all Valve (FIP x Meter Flange)Ford' 8F13-777WJones; J-19'12W
- ,:McDonald -_ .'.. .",6101MWMueller ,.8-243~7
2" Angle 8~'1IValve' (FIP x Meter Flange) .. : Ford - .:... ~-~:-_ 8FA13-777W
McDonald. . .. 46048Mueller" ' 8-24286
I • ,
- 2" Angle Ball Valve (Compression x Meter'Flange)Jones ""', J-:1975WSGMcDonald~. .' 460280
'I Mueller '..;, .' 8-24276~ ' ~ . .. l .': "" j
2" Coupling (MIP x Compression)Ford, O't C84-77-0-Jones',; • ': J-2605SG
~ McDonald" 47530-Mueller ..-' H-15428- ,
~ .. ~.. :..~2" 900 Elbow (Compression x Compression)
. - Ford ;.,' ' L44-77-0"Jones:~ J-2611SGMcDonald 47610Mueller H-15526
2" Straight Coupling (Compression x Compression)Ford C44-77-0Jones J-2609SG
48
McDonaldMueller
4758QH-15403
Series 03-35F-6103
A-2360
2" Resilient Seated Gate ValveAmerican Flow 502AVKClowMueller
Tapping Service SaddleRefer to Approved List for Standard 863
Meter Boxes & Covers
I Size ~ Location I Box Number I Cover Number I2" Traffic BES C1730w/ext BES C1730-GH
Christy B1730 w/ext Christv B1730-51G
2" Nontraffic BES C36 w/ext BES C36EChristy B36 w/ext Christy B36EQuazite PG1730BA12 Quazite PG1730WAP350
2" Traffic BES C1730 w/ext BES C1730* Probe Christy B1730 w/ext Christy B1730-51GP
2" Nontraffic BES C36 w/ext BES C36PEW* Probe Christy B36 w/ext Christy B36 PEW
*Probe - 1 3/4" hole In meter box
Standard 866 4" Water Service Lateral For 3" Meter
Standard 867 4" Water Service Lateral For 4" Meter
Tapping SleevesRefer to Approved List for Standard 878
Meter Boxes & Covers
Size Location Box Number Cover Number
3"&4" Traffic BES C52 w/extension Cover supplied byChristy B52 w/extension Utilities Department. Coordinate
3"&4" Nontraffic BES C52 w/extensioninstallation with your inspector.
Christv B52 w/extension
Standard 868 - 6" Water Service Lateral For 6" MeterTapping Sleeves
Refer to Approved List for Standard 878
49
Meter Boxes & Covers? 1 ,A,
Size Location Box Number -' Cover Number
- - , -'16" Traffic BES C52 w/extension Cover supplied by Utilities Department.Christy B52 w/extension Cootdinate installation with your
6" Nontraffic BES C52 w/extensioninspector
, .Christy B52 w/extension -, -, .•
Standard 872 .•Dirt Stop and Water Main Encasement .:-Casing Spacers -
Calpico Inc. The Model M SeriesCascade - - - - ! "Model CCS,~ ...•:--:t~ :~:.:.tt, ."' :
Standard 875 - Below Ground DoiJb.I~:Check_.Valve Backflow Device '
.-
_~i •.. \ ..~~Boxes & Covers .
" --- ... ' ... ~ I ,Size - r Location, Box Number Cover Number
- .I 1
,1"'r" ;
3/4" & 1"..
• '..' A~ reqd . .Christy 830
_ ..-Christy B30D -
Quazite PG1324BA12 , . Quazite PG1324WA50. " ~- I '_~, t~. .
As read.,
Christy B36" Christy B36D2" , ,
Standard 877 • Gate ValveValve Box
BesBrooksChristyD&LSouth Bay
M24TTG5M-9009
B21
-, .1I
Gate ValvesValves shall conform to the latest revision of AVWVA Standard C~509 covering resilient seated gatevalves. (For example: Clow, US Pipe, American Flow Control)
. ~:StYle 630 'FTSS
" .415~..,;. ..1:"432
H-3043490'SST111- .,663. ,11....': ~664-665
For taps smaller than 4", See Appropriate Standard
Standard 878 • Butterfly Valve & Tapping ValveTapping Sleeves (StainlessSteel)- 4" & larger .
Size on size up to and including 8" on 8" (examples: 4" on 4",6" on 6") and any combinations (examples:4" on 8\6" on 8") , ..DIP, CIP, PVC, and Existing ACP:(Sleeve must be compatible with pipe type)., Dresser . -
FordJMCJCM, .MuellerPowersealRomacSmith-Blair
50
1000 DCVEDC IIIEDCIV
90-01206-PRCPV-10-01
Standard 879 - Single Check Detector in VaultDetector Check Valve
AmesHerseyHersey
Precast VaultUtility Vault Co. 44-BRW{4'x 4') 4848SRW
555-SRW{5'x 5')(Pedestrian Walkways must have Algrip surface)
Standard 880 - Double Check Detector Fire Line Backflow Assembly
Standard 881 - Pressure Reducing ValvesPressure Reducing Valves
CLA-VALSingerWatts
Precast Vault and CoverRefer to Approved List for Standard 879.
Standard 882 - Surge Anticipator Valve Or Pressure Relief ValveTapping Sleeves
Refer to Approved List for Standard 878.
Utility Box and Cover (Non-traffic Loading)
Boxes & Covers
Cover
4848SRW
Box Number Cover Number
Christy 848 Christy 848M2
Quazite PG3048BA 18 Quazite LG3048WAQ150
Standard 883 - Air & Vacuum' Air Release ValveTapping Service Saddle
Refer to Approved list for Standard 863.
1" Ball Valve Curb Stop (FIP x FIP)Ford B11-444WJones J-1900WMcDonald 6101WMueller B-20200
1" Corporation Stop (AWWAICC Taper Thread Inlet x MIP or FIP)Ford FB 400-4Ford FB1600-4Jones J-45
McDonald
Mueller
J-513128B3148B
B-20045B-2996
1" 900 elbow (MIP x Compression)Ford L84-44-QJones J-2619SG
51
1" 90° Brass elbow (FIP x Compression)Ford L14-44-QJones J-2621 SGMcDonald 4779QMueller H-15533'
McDonaldMueller
4779MQH-15531
.~{il
Combination ValvesAPCOCrispinValmatic
"UL10
143C
VM-201C
, "
Boxes & Covers . . Cover NumberLocation Box Number ~
.Traffic Christy B36
.Christy B36--61D"
Quazite PG1730BA12 ;. ~ . Quazite PG1730HAR250
Nontraffic Christy B36 ChristyB36D ",Quazite PG1730BA12 (. .;; -'J!. ~ QuazitePG1730WA50
..Standard 884 - Water Meter For Private Non-residential ~ystems '.
5/8" ResetterFord W32-12W
1" ResetterFord. ~ W34-15W.
"'~•... ..-"~'
Meter Boxes & Covers -...
" .. .-,Size -- LoCation Box Number ..._.f' -' Cover Number
5/8" x 3/4" Traffic . ,.t • Brooks .37 Series
Christy B12 Christy B12C ... , \ - .
Nontraffic Brooks 37 SeriesChristy 812 ChristvB12C'
,1" Traffic
, , -Brooks 38 Series
Christy B1324 ... Christy 81324--61GH
Nontraffic Brooks 38 Series'Christy B,3q .. ' , -. ~hristy .830E
Standard SS5 - Water Meter for Private Process and Evaporative Water Lines5/S" x 3/4" Resetter I . ,
Ford Resetter-52.-McDonald 40-2 d;: •..Mueller H-1412
1" Ford Resetter-52 •McDonald 40-4Mueller H-1412
52
Model 88 Ellipse
JonesMcDonaldMueller
Standard 886 - Water Sampling Station3/8" Stainless Steel Ball Valve
"Truline Midget"
Aluminum Cast CabinetKupferle
Standard 887 - 4" Ductile Iron Multi-Service ManifoldMIP x Compression Coupler 3/4",1" and 2"
Ford C84-33-QC84-44-QC84-77-Q
J-2605SG4753Q
H-15428
Tapping Service Saddles for Individual ServicesRefer to Approved List for Appropriate Service Lateral Std.
Tapping SleevesRefer to Approved List for Standard 878.
Standard 888 - Above Ground Single Check Detector AssemblyAmes 1000DCVHersey EDC IIIHersey EDC IV
Standard 889 - Water Service AnodeMagnesium Anode
Calpico. Inc.
APPROVED:
Mark DellingerSpecial Districts Administrator
53
STANDARD DRAWING LIST
No. Title Date Approved
-' •.:
..-~ .
......"
.I.
Harness Installation for Flange Fittings,Harness Installation .Concrete Anchor Bolts for Vertical Bends.! '. ;Concrete Thrust Blocks for Horizontal Benos " .Water Main Lowering '. ., -,
"', ...'Water Main Structure , .. Fire Hydrant and LateralFire Hydrant LocationPumper ConnectionTemporary Blow off and/or Metered Connection for . ~ .Mains Under Construction i "'. , . " .,.•
Temporary Metered Connection When Fire Flow Is RequiredBlow-Off with HarnessFull Size Blow-Off1" Water Service Connection for 5/8wx 3/4"&1" Meters1" Dual Water Service Connection ....•- ..•2" Water Service Connection for 2" or 1-112"Meter4" Water Service Connection for 3" Meter4" Water Service Connection for 4" Meter6" Water Service Connection for 6" MeterCombination Water Service StubCombination Water ServiceAlignment of Water Mains and Placement of Main ValvesDirt Stop and Water Main EncasementAbove Ground Double Check Valve Backflow DeviceBelow Ground Double Check Valve Backflow DeviceReduced Pressure Backflow DeviceGate ValveButterfly Valve and Tapping ValveSingle Check Detector in VaultDouble Check Detector Fire Line Backflow AssemblyPressure Reducing ValvesSurge Anticipator Valve or Pressure Relief ValveAir and Vacuum! Air Release ValveWater Meter for Private Non-Residential SystemsWater Meter for Private Process and Evaporative Water LinesWater Sampling Station4" Ductile Iron Multi-Service ManifoldAbove Ground Single Check Detector Assembly
860861862863864865866867868869870871872874875876877878879880881882883884885886887888
851852853854855856857857b858859
54
Flange adapter
Underground socket pipe clamp
Min
3" Clear
.~ .........•
." ~ .~~""0 •• ::". 'j R=4"...•....••. il d ... ~6" Min I- :.".".....~
•. il ~
----A
Bearing area againstundisturbed ground(See table below)
ELEVATION
Redwood blocking
Conc.
Flange xpush-on valve
Flange x mech.joint valve
Mech. joint plug-tapped for blow-off.
PLAN
All flange tee
Concrete thrustblock (See table below)
•.....=....."..• .il
TIe rods
~'.'.....• .il
Concrete shall extend at leastto the undisturbed earth atboth sides of trench.
MINIMUM DIMENSIONSPIPE TIE HARNESS ,-. THRUSTSIZE RODS BLOCK. A BLOCK••6" 5/8" 4 Sa. Ft. 2' 4 Sa. Ft.8" 3/4" 7 Sa. Ft. 3' 7 So. Ft.12" 1-1/8 15 Sa. Ft. 3' 15 So. Ft.OVER 12" BY DESIGN ENGINEER
• Bearing area below grade of pipe against undisturbed ground.•• Bearing area against undisturbed ground.
COUNTY OF LAKE
HARNESS INSTALLATIONfor FLANGE FITTINGS
SCALE:OWN: SSCHK: EP
, ,
Tie rod to harnessblock -. (See table below)
Flange adapter
Flange x mechanical jointgate valve
or 3" tap.for plugs.
;1Underground socket clamp -
HARNESS FOR: VALVE WITH PLUG
Concrete shall extend at least to theundisturbed earth at both sides of trench
Concrete harnessblock - (See table below)
~in. 3. clearance
'I-A-\.TYPICAL HARNESS
ELEVATION
~~~~~~~--_-:',:,----~----.-
Plugs for _mains .12.and larger shall beheld with-angle ironas. shown. Plugs withdilly lugs may be usedon' 6. &S"mains, "
. ."A -'~•./~' ~
- , '.MINIMUMDIMENSIONS, . .
PIPE TIE ANGLEIRON • HARNESSSIZE RODS BLOCK 76. 5/S" 3.x3.x1/4" 4 Sq. Ft. 2'
S. , 3/4. 3 1/2"x3"x1/4" 7 Sq. Ft. 3'
12" ,'1/S' 4.x3.x1/2. 15 Sq. Ft. 3'- OVER. 12"SY THE DESIGNENGINEER,
, .
COUNTY OF LAKE
HARNESSINSTALLATION
• Bearing area below grade of pipe against1 -t.i~distUrbedground
....-1',, . SCALE:
DWN:SSCHI<: EP
Detail of anchor blockShownbelow
Stainless Steel clamp and bolts
Anchor Bolts
Thrust blocking
Mega-Lugs
SECTION "A-A" ELEVATION
NOTES:
TYPICAL CONCRETE ANCHOR BLOCK FOR VERTICAL BEND
Vertical M.J.with restrained joints
TYPICAL CONCRETE ANCHOR BLOCK FOR COMBINATION
HORIZONTAL - VERTICAL BEND
1. Concrete anchor blocks shall be installed by the Contractor to withstand a thrust produced bythe test pressure plus 50 p.s.i. Minimum dimensions for anchor bolts and clamps are listed intable below.
2. Use mechanical restrained joints at all fittings.
ALE NO.
STD.-853
PIPE ANCHOR STEELSIZE BOLTS CI.M4PS
6" 5/8" 3" X 1/4"
8" 3/4" 3-1/4"x1/4"
12" 1-1/8" 4" x 1/2"
For pipes greater than 12", design Engineermust submit cales. To size anchor bolts & clamps.
COUNTY OF LAKE
CONCRETE ANCHOR BOLTSfor VERTICAL BENDS
SCALE: NONEOWN: ssCHK: EP
TEE
BENDlYPICAL CONC. BLOCKINGSHOWN IN PERSPECTIVE.
lYPICAL BEND OFFSET
NOTES: 1. Safe bearing load of soil for horizontal thrust sholl not be exceeded.2. Concrete blocking, cost-in-place, to extend from bells of fittings to undisturbed soil and entire
bearing area must be against undisturbed soil.3. In using the Thrust Blocking Table below, assume 2000 P.S.F. bearing capacity unless
otherwise shown on the plans. The Design Engineer sholl specify thrust blocking requirementsfor all other soil bearing conditions.
4. For plugged leg(s) of tee or cross use harness type blocking as shown on STD. 852 andconcrete blocking indicated in table below.
MIN. REQ'DBEARINGAREAIN SQ. FT. PER 100 P.5.1.TESTPRESSURE4PIPE SOIL BEARING TEES& 90° 45° 22-1/:l=SIZE CAPACI1Y(PSF) DEADENDS BENDS BENDS BENDS
6- 1000 4 6 3 22000 2 3 2 11000 7 10 5 3
8-2000 4 5 3 21000 16 22 12 612- 2000 8 11 6 3
• MULTIPLYNO. IN TABLEBY TESTPRESSURE& DMDE BY 100For pipes greater than 12-, Design Engineermust submit calculations to size concrete thrust blocks.
COUNTY OF LAKE
CONCRETE THRUSTBLOCKS for
HORIZONTAL BENDSSCALE: NONE DATE:JUNE,2013OWN: 55 APPROVED FILE NO.
CHK: EP M. DELUNGER STD.- 854
Finished grade
',' \
, Thrust block(See Std. 853 - each end)
2' Min.
12" Min.
/
, Pipe or structurewith water main.
,", -
2' Min.
in confict
,~ ~tB
Pipe bedding material(See Std. 215)
~~I~III (J) :>(J) ~ I ~c
5 ~ ~~ ITl ~ITl ::0 "'<::0 3: Cz :>G") - ~z t
~
"
NOTES:
1. All pipe and fittings shall be ductile iron & shall be wrapped in polyethylene - per County of LakeStd. Construction Specifications.
2. Only Mega-Lug joint fittings may be used.
3. All bends shall be 45. or 22-1/2. fittings.
'.! :.i
,,',. ;"1..1 l~>~:~ ":~f ~~
Finished grade
,r"
""'._ •.. ~~
"..... -.oJ
"t't'- •,. '.I
24" Min. coverI.!t I -.
-- Concrete anchor block(See Std. 853 - each end)
, t>;jl'I _ a'" ~;-: 1
/[- -L.EXiS~i~9water
,~
main
"~PiPe.,~ with
or structure in conflicr;.. ""1)~..l::
water main. " ", ~' ~.
Pipe bedding material(See Std. 215)
==~
1. All pipe and fittings shall be ductile 'iron Be shall be wrapped in polyethylene per County of LakeStd. Construction Specifications.
2. Only mechanical joint fittings with restrained joints may be used.
3. All bends shall be 45' or 22-1/2' fitlings. - 1!2. 90' bends allowed.
4. To be used only at the direct approval of the Administrator.
,,,"
~j- ~
Ic(/)
~ ~ ()....»~(/)r'l~ (/) fT1 0 c:::>
Z: ~ :E~:::0 »0 ;.; ""3
iiz (/) fT1~fT1 -f :::0:::0c:::>C 3:~~ 0 () »
~-f -C z tfT1 :::0..fT1
~a :ll~~'1 J;i !'1CXlz~
(}l~-()) ""
,. "
NOTES:
.. ,-
./ II
".
"I
NOTES:
1. Residential fire hydrants have one 2-1/2" & one 4-1/2" outlets.Commercial fire hydrants have one 2-1/2" & two 4-1/2" outlets.
2. Paint fire hydrant in accordance with AWWAStandardSpecification C503. (See Engineer's Approved List)The finished paint color shall be white.All damaged paint surfaces shall be corrected by touchup prior to acceptance.
3. Restrained joints are required for all new construction fromgate valve to hydrant bury. Thrust blocks are only requiredwhere existing services are being modified and restrainedjoints are not used.
4. Blue reflective pavement markers should be placed 6 inches fromthe centerline stripe, or approximate center of the pavement wherethere is no centerline stripe, on the side nearest the fire hydrant.
5. If hydrant lateral length exceeds 50 feet, contact Administrator.
Approved List)
Hydrant break-off check valve(See Engineer's Approved List)
Use flange spacers or extensions(may have break-off grooves) toadjust hydrant height.
Concrete block to be pouredfrom 2" above bottom flange to2" below top flange and shallextend to undisturbed groundas shown.
(See note 3)
Concrete sidewalk or pad(See Note 1 sht. 2 of 2)
APPROVED HYDRANTS(See Engineer's Approved List)
Yl
(See note 5)5' Min.50' Max.
6" P.V.C. or 0.1. pipe
32" Min.I
6" Gate valve(See Std. 877)
Redwood blockingas requiredConcrete pier
~
Flange bolts shall be setabove finished grade to enable
bolt and nut removal. F:==Set top score mark of 6" ~ 24"break-off riser flush .with top of pad. ....•••.......
Concrete thrust(See Std. 854)
Valve box & riser.(See Std. 877)
Tapping Sleeveor Tee
Raised Blue ReflectivePavement Marker(See note 4)~
"'0
Q10CI>
...~I\)
Q Sl (J)'" i ()....»ra~ ~I C":l
<:::>Z 0"" ~o ::J ::u ~~IZ a. rTJ lo.o3
~rTJ ):~~z ~ 0 <:::>~ 0 S8 ~ ~~ » Z!;1 r-i t
!!l "- ~~~~ ~CX>z~, ••0 _v'' t.I""'-J
Face 4 1/2"outlets tostreet
Curbreturn
Face ofcurb
Face ofcurb
~24.
I
Fire hydrant'.
Sidewalk
CURB RETURN \
. CONTIGUOUS SIDEWALK
~..
Curbreturn-.
: Face•curb
.\CURB ,RETURN
WITH NECKDOWN
.•..
. .,
.1
(.,;f'j •
Facecurb oncrete
4'Min pad.(See note 1)
hydrant
I
SIDEWALK WITH PLANTER STRIP
NOTES:
1. Where no' sidewalk exists, or where hydrant is installed inplanter strip, a ~4." thick 4' x 4' concrete pad shall be,installed.
2. Hydrants to be.a. minimum of 10 feet from drivewayapproach in corrlli'lercial or multi-family developments anda'minimum of 5 feet from ~drivewayapproach in one or twofamily developme'nts._ .' .
Page 2 of 2
COUNTY OF LAKE
FIRE HYDRANT
LOCATION
SCALE:OWN: SSCHK: PP
APPROVEDHYDRANTS(See Engineer's Approved Ust)
Concrete block to bepoured from 2" abovebottom flange to 2"below top flange andsholl extend to undisturbedground as shown.
Concrete sidewalk\Pad(See Note 1 below)
(See Note 2)
Hydrant break-offcheck valve(See Engineer'sApproved Ust)
Use flange spacers orextensions (may havebreak-off grooves)to adjust hydrant height.
Break-off riser(See Engineer's approved list)
Cost IronHydrant
SECTION "A-A"
32"Min.
6" Gate valve/(see Std. 877)
6" P.V.C. or 0.1. pipe
__ Redwood blockingas required.Concrete pier
-------- 5' Min. --------
Concrete thrustblock.(See Std. 854)
Flange bolts shall be setabove finished grade to enablebolt and nut removal.Set top score mar1<ofbreak-off riser flushwith top of pod.
Valve box & riser.(See Std. 877)
Toppinghydrant
'-------20' MINIMUM-------
Low Profile Fire Hydrantand lateral. (See Above)
Low
Water main
\ "-- FIC'-- LIG
Isolation \valve
___ Standard Fire hydrant andlateral per Std. 857
Water main
PLAN VIEW
1. Where no sidewalk exists, or where hydrant is installed inplanter strip, a 4" thick 4' x 4' concrete pad shall beinstalled around the base of the hydrant.
2. Restrained joints are required for all new construction fromgate valve to hydrant bury. Thrust blocks are only requiredwhere existing services are being modified and restrainedjoints are not used.
3. Install min. of 10' from commercial or multi-family drivewaysand 5' from one or two family driveways.
4. Point fire hydrant in accordance with AWWAStandardSpecification C503. (See Engineer's Approved Ust)The finished point color shall be white.All damaged paint surfaces shall be corrected by touchup prior to acceptance.
COUNTY OF LAKE
PUMPER CONNECTION
SCALE: NONEOWN: 55CHK: EP
8' to 10' for permanent connectionby contractor under County Special Districts Inspection.
Temporary meter &: double checkvalve installed by County Forcesat the Contractor's expense.
Temporary connection betweencheck valve assembly' and blowoffto be mode by the Contractorwhere temporary meteredconnection is required.
Install plug if meteredconnection is not required.
~
ELEVATION
Plug topped on --./bottom - (See Note 4)
Pipe and fittings to be threadedgalvanized iron.
,r- Finished Grade
Existing main and\" blow-off "",omb~ ~ _ ~ ICS~ Not. 7.
\ I ~--iYlr----l~~~' ---lL.L~?:'8..._---=2: ~------- ~••• "~ :::;;;.'?"•• ' •• =H. J~=
". Temporarywood blockingsufficient to holdtest pressure.
PLAN
NOTES:1. End of new main to be on same line and grade as existing where feasible.2. Wood blocking to be used for thrust produced by test pressure plus 50 P.S.I.
3. Safe bearing load of soil for horizontal thrust sholl not be exceeded.4. See Std. 861 for blowoff size chart. (8Blowoff8 is pipe and fittings, up to
and including valve.)5. The Contractor sholl make the final tie-in under the inspection of a
County Special District representative. Inspection fees must be paid priorto scheduling tie-in.
6. Should the blowoff on the existing main be located out of the traveledway as indicated on Std. 861, the temporary blowoff piping sholl beextended out of the traveled way and the risers, meter, and checkvalve will be installed out of the traveled way.
7. Clearance to be 128 min. above finished grade or 68 above theinundation level, whichever is higher.
8. This installation is not acceptable when combustible material is storedon site or construction above grade begins. (See Standard 860 whenfire flow is required).
ool/l:r~o~ .. ~!il~"1 ~ M ~
~ ~ ~ Cz ~ "tl
Z l/l 0 ~
~ C ~ ~ ~~~fT1 6 0 1003
~~ ~ 8 CD ~~ Z rz OzO C
C) 0 OfT1~ ~la ~ zg:;:j.. ~ 0 ~
c z ~~::!l~ ~"TlO ~'1 f;:j.f"1 0 ~........t:ti
~ z 0COz 0 :::0(Jl0-• <-llD
Max. 10' for final tie-in by Contractor under Special Districts inspection.
L
6- Ductile ironpipe &. fittings
Temporary wood blockingsufficient for test pressureor alternate harness blockingat both ends.
Finished Grade
Approved 6" double check valve
Double gate valve assembly
/OS&'Y Shut-off valves\
~~~~~~~~~~~~~ U hiriliII ~
IIRemove existing blow-off Uprior to connection f'1
IIIIII
__ 11
NOTES:1. This assembly shall be installed when combustible materials will be stored or
constructed on-site prior to acceptance of the on-site water main by the County.Fire flow & access must be satisfactory to the local Fire Agency.
2. The Contractor shall furnish the 6" meter and have the 6" meter and double check valvetested and certified on-site by Special Districts prior to activating the system. The contractoris responsiblefor any fees and charges incurred.
3. The Contractor shall make final tie-in under the inspection of a Special Districtsrepresentative. Inspection fees must be paid prior to scheduling tie-in.
4. Meters to be gallon reading type only.
5. Clearanceto be 12" min. above finished grade or 6" above the inundation level, whichever is higher.
6. Fire lines shall be flushed per County Standard Specifications and adequate fire flow providedprior to combustible materials being stored or construction beginning on site.
COUNTY OF LAKETEMPORARY METEREDCONNECTION WHEN
FIRE FLOW IS REQUIREDSCALE: NONE DATE: JUNE,2013OWN: SS APPROVED Fll£ NO.CHK: EP N. OELUNGER STD.- 860
Precast concrete meter box setflush with surface of ground.
APPROVED BOX & COVER
galvanized pipewrapped with
2" or 3" Square headplastic plug-fingertight
2" or 3" Bross ball valve(See Engineer's Approved Ust)
set valve operator parallel to curb.Set valve grade above bottom ofbox and a min. 2" below lid.Redwoodsupport
Plug tapped on center for iron pipe
size thread. (See Note 1)
Bearing area againstundisturbed ground(See Table Below)
Tracer wire # 10 copperW/2"-3" pigtail
(See Engineer's Approved Ust)
.~.4~ ~
R=4" Min.-(
~-t
ELEVATION NOTES1. For 6" & 8" mains, M.J. plugs or
cops with dilly lugs and 2" center top maybe used in lieu of angle iron. Installangle iron off-center to accomodatecenter top.
Concrete sholl extend at leastto the undisturbed earth atboth sides of trench.
Tie rods - (see Table below)2. Blow-off sholl not be installed within
the traveled way. If main endswithin street area, blow-off to beextended to area outside oftraveled way and installed asshown above.
Angle ;,:=:=n(see T~~~,~_ 1\ ~below & Note 1)
PLAN
COUNTY OF LAKE
BLOW-OFFwith HARNESS
MINIMUMDIMENSIONSPIPE TIE ANGLE IRON BEARING A SIZESIZE RODS AREA B.O.6" 5/8" 3"x3"x1/4" • 4 Sa. Ft. 2' 2"8" 3/4" 3 1/2"x3"x1/4". 7 So. Ft. 3' 2"12" 1-1/8 4"x3"x1/2" 1S So. Ft. 3' 3"
O~~ BY THE DESIGNENGINEER 3"
• (see note 1)SCALE:DWN:SSCHK: EP
JUNE,2013FILENO.
STD.-861
Valve box & riser.(See Std. 877)
Tapping sleeve orhydrant tee
ConcreteBlock(See Std. 854)
Precast concrete meterbox set flush with surfaceof ground or traveledway.
#10Gate valve(See Std. 877)
P.V.C. or 0.1. Pipe
Redwood blockingas requiredConcrete pier
NOTES
2" or 3" Square headplastic plug finger tight
2" or 3" Brass ballvalve. (See Engineer'sApp~oy.ed__List)_Flange w/2" or 3" centertop.Concrete block toextend to undisturbedground 3'x3'x6" min.
Full length 0.1.spool length asrequired
l~~•....•••.j. ~.•. -- (See note 1)
•.'.j.: ~~ ." ., •... ..".. .•....~..~" •....•..... .....f"}." "-.' .
•...~,rApproved Box & Cover
(See Engineer's Approved List)
1. Restrained joints are required for all new constructionfrom gate valve to 9cr bend. Thrust blocks areonly required where existing services are beingmodified and restrained joints are not used.
2. Blowoff piping to be the same size as the main.
blowoffBlind Flange
EIP or FIC
Iwater main water mainF/c"
Cul-de-Sac Full size blowoff
Deadend Street
water mainF/C"
Blind Flange
Full size blowoffCOUNTY OF LAKE
Thru-Street FULL SIZE BLOW-OFF
SCALE: NONEOWN: 55CHI<: EP
CountyForces to removespacer borand install 5/8" or I" meter.
B
YAIf meter box has "cut outs" instaredwoodor pressure treated blocto prewwttdirt intrusion.Oroin rock beddingmaterial
Buikf,"g setVice line (See Note 9)
LSpacerbor (SeeTable below)
Anglemeter boll valve (See Table below)Set min. of 2" from box - each end.
SIZE OF DIMENSIONMETER
A B
5/8" x 3/4" 10" 12"-13"
1" 10" 12"-14"
•....CD>ou
:ot'")
__ -- MaintainSlope
1" HOPEpipe,continuousfrom corp. stop toangle meter boll valve.(no splices allowed)
1" Boll valve ~on(See Engineer'sapprovedlist)
Watermain
'---- Servicesaddle
NOTES
1. Service connection bedding material to be compacted to minimum 90" relative compaction prior to installationof HOPEservice tubing.
2. Unless otherwise specified on the plans, provide for 5/8" x 3/." meter installation for residential uses andI" meter installation for commercial uses.
3. Unless otherwise specified on the plans, install 1" service tubing for residential uses and 2. service tubing forcommercial uses. For unknown commercial uses, install 2. service per standard 865.
4. Contractor to install schl. 80 PVCspacer with threads on both ends. On111/2. • holes 0 2. O.C. through pipeafter testing service lateral.
5. Meter box must be set flush with top of curb or sidewalk, if applicable.
6. Prior to meter set. address to be clearly marked on topside lip of meter box with permanent felt marker.
7. For 5/8. x 3/ •• meter installation on a 1. water service lateral. use a reducing adopter.
8. Troffic loading box & lid to be installed In all driveways or locations where vehicular trofficmay occur. and where specified on plans.
9. At a minimum, extend building service line to 12" beyond bock of meter box and cop. Where sidewalk is being installedby the public improvements contractor. extend building service line to 12. beyond back of sidewalk and cap.If permanent meter set is requested prior to completion of property side plumbing, a minimum of 10'of the building service line must be installed with a hose bib on a riser above finished grode.
METER SETTING ASSEMBLY PARTS LIST
METERSIZE VALVES SPACERBAR(SEENOTE4)
5/S" x 3/4" (~~tneer's 1"11x 7-3/4"a list) Schl. 80 PIICPipe
1" (See~ineer's 1-1/4 •• x II"opp list) Schl. 80 PIICPipe
METER BOXES AND COVERS(See Engineer'sapprovedlist)
APPROVED TAPPINGSERVICE SADDLES
(See Engineer'sapprovedlist)
COUNTY OF LAKE1" WATER
SERVICE CONNECTIONFOR 5/8" X 3/4" & 1" METERS
SCALE: NONE DATE:JUNE,2013OWN: 55 APPRO\IED FI.£ NO.CHI<: EP ••• DEWNGER STO.-863
Face of curb
A:I
i!I
--------------l---------i-------- ~I
ALl-fAI
E water serviceS' MIN.
PLAN VIEW
Sewer lateral
APPROVEDCONCRETEMETERBOX &: UD(See Engineer' 8 appnwed 1i8t)
1" HOPEwater service lateral
SECTIONA-A
SINGLE METER BOX INSTALLATIONFOR DUAL 3/4" MANIFOLD
District forces to remove spabar &: install 5/8w water meter
Meter box &: lid(See Engineer's approved
~1" •• x 7-3/4" Schedule 80 PVC pipespacer bar - (see note 3 below)
NOTES:
(See note 5)
)-Building service lines tobe installed parallel to
. each other andperpendicular to curb line.
(See Note 6)
Angle meter boll valve (See Engineer's approved list)Set valves min. of 2" clear from box at each end.
U-Branch, (See Engineer's approved list)
1. Meter box to be installed so that reading lid is centered over themeter registers.
2. In traffic loading areas, install two individual meter boxes andreplace U-branch with field-mode manifold.
3. Contractor to install SCH 80 PVC spacer with threads on both ends.Drill 1/2".. holes 0 2w O.C. through pipe after testing service lateral.
4. Meter box knockouts will not be allowed.
5. Prior to meter set, address to be clearly marked on topsidelip of meter box over each service with permanent felt marker.
6. At a minimum, extend building service lines to 12w beyond back of meterbox and cap. Where sidewalk is being installed bY the public improvementscontractor, extend building service line to 12w beyond bock of sidewalk andcap. If permanent meter set is requested prior to completion of propertyside plumbing, a minimum of 10' of the building service line must beinstalled with 0 hose bib on a riser above finished grode.
COUNTY OF LAKE
1" DUAL WATER
SERVICE CONNECTION
SCALE: NONEOWN: 55CHK: EP
2" HDPE and compression coupling. (See note 3)
16"
Angle ball valves.(See Engineer's approved list)Set min. 2" clear frombox at each end .
12" Box ExtensionA 13" (See Engineer's.! approved list).,--/j--~Pipe to be installed~ / ~~der meter box
extension. Knockouts~ will not be allowed.
_ Building service line(See note 5)
Threaded brass or type "K"hard temper copper.
Thrust blocks - 2 Sq. Ft.Similar to Std. 854
Opening lengthper table below
(See Note 1)
If more than one length of tubing is required, compressioncoupling shall be used. No compression fittings allowed undercurb and gutter. (See Engineer's approved list for parts)
Prior to meter set, address shall be clearly markedon top of meter box with permanent marker.
At a minimum, extend building service line to 12" beyond back of meterbox and cap. Where sidewalk is being installed by the public improvementscontractor, extend building service line to 12" beyond back of sidewalkand cap. If permanent meter set is requested prior to completion ofproperty side plumbing, a minimum of 10' of the building service linemust be installed with a hose bib on a riser above finished grade.
5.
4.
NOTES:1. Spacer shall be schl. 80 PVC pipe with 2" flanges threaded on
both ends. Drill 1/2"1/> holes C 2" O.C. through spacer after testing.Spacer bar assembly length is to outside of flanges. Openingbetween valve flanges shall be 1/4" longer than spacer barassembly to accommodate gaskets. District forces will remove spacerbar assembly and install meter.
2. Meter box must be set so that cover is flush with finished surface.
3.
32" Min. uo~S
..' .
2" compression 90' ell
....:.~.:~) ::.,:;~:><..;.::~
2" Brass M.I.P. xcompression coupling(See Engineer's approved list)
SPACER BAR ASSEMBLYTABLE
Opening length SPACER BARMETER SIZE (See note 1)
1 1/2" 13 1/4" 1 1/2". x 13"IV/reducing adapter
2" 17 1/4" 2"Gl x 17"
APPROVED TAPPING SERVICE SADDLES
(See Engineer's approved list)
APPROVED METER BOXES AND COVERS
(See Engineer's approved list)
3" Brass
Concrete pier block& wood blocking req'd.
Water
Service saddle
Gate valve
Valve box and riser(See City Std. 877)
5l 51I(/) "TJ" i ("')0~~~ ;0 N,....
1"'1'" • '.I., '~ .,.....0 'OW
Z oo~ ~o ;oz~ <;;,F~Z zrrl 10003
Iii! ~ 1"'1 ••.• Pi;O ~Ef:) I -HI> CS 0 -(o~ ~
~ ~z<!1!:1 • ota'" 1"'1 •••••'1 ~ ~ ~ ~())~[T'I ~
0)' ~ rrl(Jl ~ ;0
NOTES:1. Spacer sholl be schedule 40 PVC pipe with 1/2"~
holes 0 2" O.C. drilled through piPe. County Forcesto remove spacer bar & install 3 water meter.
2. Boxes located in traffic loading areas must be setso the steel cover is flush with finished surface.
3. Prior to meter set, address sholl be Clearly markedon top of meter box with permanent marker.
Depress line to meetBuilding Dept.requirements.
(M.J.)
Redwood blockingos required
--- Concrete pier block
r Valve box and riser(See County Std. 877)
r Valve to be installed/ only when backflow
preventer is notrequired .
10" box extension(See Engineer's approved list)
(See Engineer's approved list)
APPROVED TAPPING SLEEVES
APPROVED METER BOXES, EXTENSIONS AND COVERS
(See Engineer's approved list)
'.:~~. ':.1 ~~.",
min.
.'A' .: .•.... ' W~:....~." .' '0 , " .• 1' \ •• ~ ••• " ••• :.'.. ', :.• ~"",•.... ", ~ .,' ~:.•......
PVC or ductile iron pipe
Redwood blockingas required
Concrete pier block
Box pipe knockouts to be grouted sufficiently to preventIntrusion of dirt. Pipe openings in box to be neatlycut - do not use hammer.
Restrained jOints are required for all new construction fromgate valve to 90' ell. Thrust blocks are only requiredwhere existing services are being modified and restrainedjoints are not used.
4.
5.
Valve box and riser(See County Std. 877)
Water main
ToppingTEE
~~I~()0III Vl » zVlr Z ~ ~ITI
ITI C()
~Z --i =E- »
~j~ ~ ~ ~~ ~ ITI " ::u ~
~ 0 (/)~o ::u rTJ
~ ::uITI ~ < t.. . ()
a:!l2 ~ rTJ~'1 f;j z ~
CQZJ'T1ON rTJ0'>' 00'> (;: ::u
Note: Valve may beinstalled in or directlybehind sidewalk.
NOTES:1. Spacer shall be schedule 40 PVC pipe with 1/2"'
holes 0 2" D.C. drilled through pjpe. District Forcesto remove spacer bar & install 4 water meter.
2. Boxes located In traffic loading areas must be setso the steel caver is flush with finished surface.
3. Prior to meter set, address shall be clear~ markedon top of meter box with permanent marker.
APPROVEDMETERBOXES.EXTENSIONSAND COVERS
(See Engineer's approved list)
r Depress line to meetBuilding Dept.requirements.
r Valve box and riser(See County Std. 877)
/ Valve to be installedon~ when backflowpreventer is notrequired.
10" box extension(See Engineer's approved list)
APPROVEDTAPPINGSLEEVES
(See Engineer's approved list)
(Typ. both sides)
32" min.
or 878)
PVC or ductile iran pipeRedwood blockingas required
Box pipe knockouts to be grouted sufficiently to preventintrusion of dirt. Pipe openings In box to be neatly cut- do not use hammer.
Restrained joints are required for all new construction fromgate valve to 90' ell. Thrust blacks are only requiredwhere existing services are being modified and restrainedjoints are nat used.
5.
4.
Valve box and riser(See County Std. 877)
Concrete thrust(Sse Std. 854)
Water main
~!00III Vl r Z C")VlP.'l Z~fTl : C0
~Z -l~0 O~ ~~~ z~IfTl ZfTl ~,,;0
COCf)a 0 ;OfTl ~~ .p.. ;0 &:P.'l : <a ::!l
0i:32 3:fTl
'1 I;j z~CXl~ !"1
0)' ~ fTl~ '" ;0
Tappingtee
APPROVEDMETER BOXES, EXTENSIONSAND COVERS
(See Engineer's approved list)
See note 1
(Typ. both sides)
Valve to be installed only whenbackflow preventer is not req'd.
APPROVEDTAPPING SLEEVES
(See Engineer's approved list)
/.'?
<ID
@) .'~.'1',{ ~ '--(See ,ole 5)
..:.. ...
. .. .~'.... ' ~. .-:'. ~:~.'," .\ ~.\.:.~:,;
PVC or ductile iron pipe
Redwood blockingos required
32" min.
II (ValVeV (See Std. 877 '" 878)
Valve box and riser(See County Std. 877)
Water mainNOTES:
1. Contractor to install schl. 40 PVC pipe spacer with 1/2-_Holes 0 2- O.C. drilled through piPe. District Forces
Q iI(/)() to remove spacer bar & install 6 water meter.?,: •. ~ ~ 2. Boxes located in traffic areas must be set so the steelIII ~ l:;:; z ~ cover is flush with the finished surface.
fT1 m C() ~ 3. Prior to meter set, address to be clearly markedZ :::! =E ~ on top of meter box with permanent marker.
F :ID ~ ~ ~ ~ 4. Box pipe knockouts to be grouted sufficientlyIi!IfT1 fT1 ~ to prevent intrusion of dirt. Pipe openings in boxE " ;0 to be neatly cut - do not use hammer.lIS 0 CSl ~ ;0 ~ ~ 5. Restrained joints are required for all new construction from
~;o gate valve to 90' ell. Thrust blocks are only requiredfT1 ~ < t where existing services are being modified and restraineda::' ()?i: joints are not used.
'1 ~ ~ ~ fT1 ~CO~C ~m- 0 fT1CO c; ;0
".:. .
Water main~
Face of curb
Future backflow device as required.
, '.
Future service lateral(Size to be determined)
- 12. Service stub unlessotherwise approved.
,----r-~~* t, I.'.~ ~.';I. " .*",; !.~r~-T-<~, '
Future detector check I Iper younty Std.'s ----I ;I
I . . I
Typ. F.H.. and lateratinstallationper County STD.857 when req'dby local Fire Agency(See note 4)
,Future domestic metersize to be determined.
• >-r ,,---:r-,I ' I 'I II .•.- Future reduced pressure type backflowI I /reventer assembly per County STD.876.
I I 1I Ii'r -L. -L.r Future irrigation meter
I I I size to ,be determined•
•.1 L.,. ; J I I I I_________ ~':...:.._._:';-1_- LJ-.:!_-=-.r.:. _
. '>1" I .1." I L:1 "; .:. i :... II, I I. ;~ture
8.0. in boxlper- "- " " I . ' side.wa71.k.. ' .County STD.861. I 1.1 .I .Oo.1 . I
----------~- ~ 12",'0" -::-:1::-c:I t~Plonl.'''''~-------~24- '-..-1.... ~ -I -::J - -c... -::.. .J
.•.. r'-- Tapping sleeve or Tee
NOTES: ;,
1. This standard applies to commercial and multi-residentialdevelopmentswhere domestic, irrigation, or fire protectionrequirements are not established at the time of application.
2. Special Districts approval must be obtained prior to installation1",>
3. Where a hydrant is required. install an 8. x 6- cross or12" x 6- cross as appropriate. Wherea hydrant is riotrequired, install manifold connection per the appropriateservice lateral Standard.
'4. Use'a slotted break:"'otf riser. as necessary to enableproper orientation of the. fire hydrant outlets.
5: Restrai~~d joints ar~' required from gate valve.to blowoff for all new,construction.
. , :: /1 .
. \\ COUNTY OF LAKE
COMBINATION
WATER SERVICE STUB
SCALE:OWN: 55CHK: EP
Water main----..........
..•. :Face of curb -./
L$dOoolk
7..
Planter area
Backflow device as required.
Irrigation meter - Size to be determinedby Special Districts.
Reduced pressure type bockflowpreventer assembly per County STD. 876.
.. 0. ~
Service connection(Size to be determined)
Install reducer and valve as required per appropriate Std.
- Service to be sized per County Design Standards
'- Topping sleeve or Tee
Gate valve to beinstalled between detectorcheck & domesticservice where Std. 879Det. check is used.
Domestic metersize to be determined.
Typ. F.H. and lateral installationper County STD. 857 when req'dby local Fire Agency.(See note 5)
Detector checklocation(See Std. 879, 880 or 888)
NOTES:
1. This standard applies to commercial and multi-residentialdevelopments where domestic, irrigation, or fire protectionrequirements are established at the time of application.
2. When referring to this standard, specify meter and detectorcheck sizes and appropriate standard plans.
3. When field conditions preclude the installation of meters at ornear the curb line, submit detailed plans of the proposedinstallation for Special Districts approval. NI meter installationsmust be within public right-of-way.
4. Where a hydrant is required, install on 8- x 6- cross or12- x 6- cross as appropriate. Where a hydrant is notrequired, install manifold connection per the appropriateservice lateral Standard.
5. Use a slotted break-off riser as necessary to enableproper orientation of the fire hydrant outlets.
6. Restrained joints are required for all new constructionfrom the gate valve at the main to the detector check valve.
COUNTY OF LAKE
COMBINATION
WATER SERVICE
SCALE:OWN: 55CHK: EP
curb
Gate valveWater main
utterof curb---
R/W line
(See Note 3)
coE\..Q).•...o3:
R/W Line
Water main
Gate valve
Lip of gutter
Face of curbR/W line
NOTES
1. Water mains shall be located parallel to street centerlinesunless conflicts with other underground facilities cannot beavoided.
2. Non-standard alignments shall be approved by SpecialDistricts prior to installation. Mainline valves, except hydrant valvesand tapping valves, shall be on face of curb extended wherefeasible.
3. Install mains with constant alignment whenever possible,minimum 3' from the lip of gutter and minimum 4' fromcenterline monuments.
(See Note 3)
Face of curb
Lip of gutter
..__ .... <t(See Note 3)Lip of gutter
Face of curbR/W line
COUNTY OF LAKEALIGNMENT OF WATERMAINS AND PLACEMENTOF MAIN VALVES
SCALE: NONE DATE: JUNE, 201OWN:SS APPROVED fILE NO.
CHK:EP N. DaUNGER STD.- 871
Min. 2- thick rough cuttreated redwood plankswith opening cut to ~~ Redwood 2 x 4fit water main or approved stakesmanufactured casing plug.
Ductile iron~ A Water main
Heavy dutyskid
Min 2- thick rough cuttreated redwood plankswith opening cut tofit water main
o
TYPICAL DIRT STOP DETAILNO SCALE
8-• ,- Max.
8-• I" Max. • I-
NOTES1. Install skids per manufacturersspecifications.
2. See Engineer's approved list forapproveCl skids.
3. Where conductor casing isexisting R.C.P., banded redwoodskids may be installed in lieuof polyethylene skids with
Special Districts approval.
APPROVEDPIPES:Ductile iron pipe w/restrained joints,TR flex or Field Lok restrained joint Ductile Iron pipe,Certainteed Yellowmine Certa-Lok PVC pipe
c'0;c(,)
Skid height to besuch that pipe jointsdo not rest on casing.
TYPICAL PIPE JOINT AND INSULATORNO SCALE
Minimum size casing requiredFor all approved pipe types
JUNE,2013FILE NO.
STD.-872
6" 8" 12" 14" 16"
COUNTY OF LAKEDIRT STOP ANDWATER MAINENCASEMENTNONE DATE:SCALE:
OWN: 55CHK: EP
Stoel band
Steel conductorcasing asspecified
SECTION "A-A"NO SCALE
Pipe joint
Water main
Polyethyleneskids
5/16- Cadmiumplatod bolts
Min. 12" nipple
I BuildingService Line
====3
Concrete thrust blocksper Std. 853 (4"Gl & larger).
Install union on propertl sideriser where piping is 3 Gl or less.
12" min. above finished gradeor 6" above the inundationlevel, whichever is higher
For 4"Gl & larger install adjustablesupports.(Two required)
S(hut off valv~sSee note 9)
Test cocks
5. The piping from the meter to the double checkvalve assembly and the double check valveassembly itself must be the some size as themeter unless otherwise approved bySpecial Districts.
6. This Std. will be used for all commercial installationsrequiring a double check valve type backflow preventer.
7. If above ground installation is not feasible installper Std. 875 after approval by SpecialDistricts.
8. Any cover or screening for the backflow preventionassembly must be approved by Special Districts.prior to Installation.
9. Valves 2"1&& less sholl be boll valves, 3"Gl andgreater sholl be resilient seat gate valves.
3" thick concrete podmin. 2'-0" wide for2"Gl device & larger.
NOTES:
1. Double check valve assemblies sholl be installedadjacent to and on the property side of side-walk where applicable. Where no sidewalk exists,the double check valve assemblies sholl beinstalled as close as possible to the watermeter location. Any conflicts sholl be resolvedby Special Districts.
2. Approved double check valves shall be asshown on "List Of Approved Backflow PreventionDevices" (Latest Revision) by the University ofSouthern California Foundation For Cross -Connection Control & Hydraulic Research.
3. All double check valve assemblies shall be providedwith a minimum of four (4) test cocks.
4. Double check valve assemblies shall be requiredfor any use where on intermediate hazard exists.To be installed on all services to propertieswith wells, and other domestic services as determinedby Special Districts.
Concrete meter box & lid \per appropriate Std.
$;••• ,Ik \
..,..-.~...•r~'~-"!--I..--,"",--~-...,.-.r,J L__r ," . ~ 4';" ~.... :~ '.:.•...•.•... ' •. ~. 'r" .:... I': ~~."•.,. ": " ----'- -- __ ~'_;."o ". • .",: . .:s~'r ~ '.' . ',' . --,,!,,_, ~-~
f!':'--:-~" 1 ( '.'I. '. . :.'4 . '. • . ~. ~~.. . ~ t J I .. 1L,-..:-:..:.,L" '. ....•• I I 1,.1
----::I 1.. 1 C:=::l r.1~I M-~-~ r.JI I ~fill' ~r' I'JI I I ...•__ .... 1 l'1u I I LJ
c~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~
Piping, valves, nipples, etc. sholl bethreaded brass or HOPEfor 2"1&or less, & sholl be flangedductile iron for 3"Gl or greater.PVC pipe is not acceptable.
~~I~III til rtIl~ g C":l
lD C C»lD» ~°rlD ...".
Z =" rrJO <;<0.,., < ~FiZ 50rrJ "'<o rrJ:E Ie>E ~;o C~ 00="0 ~
~~<~ s:~ 0f:O ~a::!l~ rrJ< t:tj''''z rrJI "'.fTl(X)~~'-.I' ..•~ t,,<
Valves 2"~ & less shall beball valves, 3"~ and greatershall be resilient seat gatevalves.
Install union on propertyside where piping is 3"~or less.
Double check valve(see note 3)NOTES:
Note: Onsite water line tobe depressed to meetBuilding Dept. requirements.
\ S;dewalk~
r.: "~ ::""=:E":L;.... ~ ""~"':"..\ ~ ~ :.....~'.r'~ ..-J':;"~rl{ 1r"'--'~~:""J~ \j{_ ~
== = = = J.l Sennee 'ateraland meter
Concrete meter box & lidper appropriate Std.
------------------Residential Fire Line Connection Details
Alternate "B"Alternate "A"
Single Check /Valve as req'dby Fire Dept.
1. This Standard applies to residentialconnections with auxiliary water suppliesonsite or where residential fire sprinklersystems are installed. Where residentialfire sprinkler systems are designed tocirculate water with the domestic systems,no backflow device is required.
2. Double check valve assemblies shallbe installed adjacent to and on theproperty side of sidewalk where applicable.Where no sidewalk exists, the double checkvalve assemblies shall be installed as closeas possible to the water meter location.Any conflicts shall be resolved bySpecial Districts.
Double CheckValve(see Note 2)"
sidewalkwO~
water service-l
This alternate allows theconnection of the fire lineto the domestic supply linenear the back of sidewalkwith a double check valvewith dual lines joint-trenched to residence.
Double CheckValve(see Note 2)"
sidewalkwO~
water eervice-l
COUNTY OF LAKEBELOW GROUND
DOUBLE CHECK VALVEBACKFLOW DEVICE
SCALE: NONEOWN:SSCHI<: EP
This alternate allows theconnection of the fire lineto the domestic supply linewith a single check valvenear the residence.The check valve must bereadily accessible.
3. Approved double check valves shall beas shown on "Ust Of Approved Back-flow Prevention Devices" (latest revision)by the University of Southern CaliforniaFoundation For Cross-Connection Control& Hydraulic Research.
4. Piping, valves, nipples, etc. shall bethreaded brass or HDPEpipe for 2"~ or less, & shall be flangedductile iron for 3"~ or greater.PVC pipe is not acceptable.
5. All double check valve assemblies shallbe provided with a minimum of four (4)test cocks.
6. See Engineer's Approved List for approvedvaults and covers. The vault must bemin. 6" longer than the backflow assembly.
7. The piping from the meter to the doublecheck valve assembly and the double checkvalve assembly itself must be the samesize as the meter unless otherwise approvedby Special Districts.
8. To be used only upon the specific approvalof Special Districts.
Between meter and backflow device, allpiping, valves, nipples, etc. sholl bethreaded bra~s or type "K" hard-tempercopper for 2 ~ or less, & sholl beflanged ductile iron for 3"~ and greater.PVC pipe is not acceptable.
Concrete meter box & rdper appropriate Std. 1 \
r..~-5~~'":..''.ICE\vS;deWOIk ~~ . "'." .... ' - .. :.;: .' .''--.-'.".I. J . .~. :..-~ .. '. "~'lF ~ r.jc:::.-- [j - 0__ =:. =:. ::::J
For 4"~ & larger install adjustablesupports. (Two required)
Install union on propert)' sideriser where piping is 3 ~ or less.
12" min. above finished gradeor 6" above the inundation levelwhichever is higher
rMin. 12" nipple
I ..../ Building service line
- ==::J
Concrete thrust .\>Iocksper Std. 853 (4 ~ & larger).
1. Reduced pressure type backflow devices shall be~il~ required as determined by Special Districts.
~tnr ;0 ~2. Approved reduced pressure backflow device shall
tnfTl CD be as shown on "List of approved backflow.. » fTl C(") 0
~
prevention devices" (of latest revision) by the 5. Any cover or screening for the backflow
Z A C University of Southem California Foundation For prevention assembly must be approved by0 " (") Cross-Connection Control & Hydraulic Research. Special Districts prior to installation.
iiz r fT1 ~fT1 0 0 ~ 3. Backflow prevention devices shall be installed
:E -0 adjacent to and on property side of sidewalk 6. In limited space applications valves may beC where applicable. Where no sidewalk exists, installed on risers min. 4" above grade.
0 ;0 ~!ll 0~
fT1 the assembly shall be installed as close as
~ (/)
tpossible to the water meter location. 7. The addition of spools must be approved by
[;1 (") (/) Special Districts prior to installation.
a :!lfT1 C
~4. A valve of the same size as the backflow
c.. ;0 device sholl be installed on each side of 8. The piping from the reduced pressure backflow devicec: fT1'1 J;; z the backflow prevention assembly. Valves 2"~ & & the reduced pressure backflow device valve assembly
(X)z~
less sholl be boll valves, 3"~ & greater sholl itself must be the some size as the meter unless-....,JpOl t.I be resilient seat gate valves. otherwise approved by Special Districts.
VALVEBOXES:(See Engineer's approved list)
STEM EXTENSION fABRICATION NOTES
Closs •••••cone. collorfrom 3. below finishedgrade.
COUNTY OF LAKE
GATE VALVE
8. SOR 35 PII'C ee_r pipeconforming to ASTN3034.Riser pipe to be plumb andcentered over valve stem,and sholl be constructedfrom a 8ingle length ofpipe. with no joint.
Concrete pier block and redwood blockingrequired when instoUing new valve onexisting main.
Precast valve box set flush with streetsurface with cost iron ring and covermat1<ed "W"'TER••All welds to riser shaft sholl be fillet
weld all around as specified below.All steel required for riser fabricationsholl be structural steel per ASn.t A36.
2.
1.
Valves 2. through 16. sholl be resilient wedgegate valves and valves 18. and larger shollbe butterfly valves (see Std. 878) unlessotherwise approved by Special Districts.Gate valves sholl conform toEngineer's approved list.All external bolts and nuts on valvessholl be 304 stainless steel or theentire valve shaH be wrapped tightlywith polyethylene film held securelywith adhesive tope.
If valve Is Installed 80 that the topof the operating nut is less thon 30.below finished grode. the valve stemriser is not required.
for installation of butterfly valveand topping valve. see Std. 878.
Insulated tracer wire110 copper w/2.-3. pigtail
VALVESTEMEXTENSIONPARTSUST
<D Valve operating nut or 1-7/8.xl-7/8.x2.high solid steel welded to top plate.
(i) 3/16. thk. x 7-1{2. dia. free spinning guideplate, with 3-5/8 dia. hole in center.
<3> Two 3/16.xl-l/2.xl-1/2"Xl-l/2"X5"L steelangle weld to two 8ides of riser shott.
@ 2-1/2. x 3/16. square steel tubinglength as required edge to weld to top plate.
<5> 3. x 3. x 1/4. steel top plate.Riser shaft after guide plate is in place.
1.
2.
3.
4.
5.
SCALE:OWN: 55CHK: EP
-,ijj~.~ ..':.-_ .• Volve box, valve stem extension,•• & wive riser
(See Std. 8n)
Install Flanged Butterfly valve withtwo flanged by mechanical adopterson Closs 200 PIIC.
Butterfly Valves(See Engineer's Approved Ust)
BUTTERFLY VALVETo be used on pipe 18" and larger
Water Uoin
Topping sleeve orhydrant tee
Approximate Excavation Area
IValve box, valve stem extension,& wive riser(See Std. 8n)
J/"", 1" & 2" Tops: 5' Long x 2'-6" Wide
,," & Larger: 6' Long x ,,' Wide
TAPPING SLEEVE & VALVE
6" Uin.
Top Pit
Dimensions
TAPPING SLEEVES
(See Engineer's Approved Us! for Std. 866/867)
NOTES:1. All external bolts ond nuts on valves sholl be 30" stainless steel or
the entire valve sholl be wrapped tightly with polyethylene filmheld securely with adhesive tope.
2. Tops sholl be mode by Contractor.Inspected by Special Districts.
COUNTY OF LAKE
BUTTERFLY VALVE ANDTAPPING VALVE
SCALE:OWN: 55CHI<: EP
JUNE,2013flLE NO.
STD.-878
To private hydrant(s)-
{padlOCk
I36"
'- Post Indicator Valve(resilient wedge type)
rock
Provide ," conduitfar tamper switchcontrols when req.(see note 2
/ sheet 2)
Fire DeportmentSpecial Districts Inspecto~ Inspector
I .t./I .Ol .~. :•
'" ..'.
;.,4
. . ,.:
.... ..•..t./ .. 'o ..• .'. "J See note 2 Sheet 2
lC: • '.?' :~
~I'"1< of.
Valve Status Indicatorto face street
(See note 2Sheet 2)
:-@
APPROVED DETECTOR CHECK VALVES(See Enqineer's Approved Ust)
.'.'.
..
" :•
•
'.
•'C•
'.i,4'
. .
..I:":'
P.V.C. or DJ.P.
Precast vault c!c cover(See note 3, sheet 2)
Bypass meter to be supplied c!cinstalled by Special Districts uponCounty approval of fire line InstaliaU
Sidewalk
. k . ~ '..•• ...• .~. 4 .' . ~
2~""3~
~
t~
Grout around pipe or installdirt ""po "mnm to Std. 812 \
oITl-i(J)1Tl-OZb~;o1TlzO:r:~8cA:;
t.l
i-!il
~JI~ra Ul rUl[;1
BY PASS PARTS LIST
NO. DESCRIPTION QUANT. PART SIZEOR MODEL NO.•
1. HOSE BIB - MIP 3 3P'-2. TEE - AP x FlP x AP 3 3/4-
3. SHORT MTR SPUD - 2- L 2 C38-23-2
4. STRAIGHT CHK. V~VE - MIP x AP 1 HS81 - 333
5. ADAPTER - COUP x MIP 1 C84 - 33
6. COPPER l\J8lNG - lYPE "1<- (SOFT) VARIES 3/4-
7. 90' ADAPTER - eot.IP x MIP 4 l84 - 33
8. STRAIGHT BALL V~VE - AP x FlP 2 Bll - 33
9. CLOSE NIPPLE 4 3/4-
10. 90' ADAPTER - caMP x AP 1 L14 - 33
11. ADAPTER - COt.tP x AP 2 C14 - 33
12. BUSHING 2 3/4- x VARIES
• FORO MODEL NO'. ARE GIVEN. SUBMIT SUBSTITUTIONS FOR I>PPROVN..
NOTES
,. This Standard applies when above ground installation per Std. 888 is not possible due tosite constraints.
2. The post indicator valve shall be installed as close as possible to the detector check vault. Ifa post indicator cannot be installed, an O.S. & Y. valve with locking chain must be installedinside the vault on the property side of the detector check with approval from SpecialDistricts. The installation shall be provided with electronic supervision monitoring whenrequired by the local Are Agency.
3. Refer to vault size chart for proper size. Should an O.S. & Y. valve beinstalled in the vault, the vault size may need to be verified by the Controctor.See the engineer's approved list for approved vaults and covers.
••.. All fire line services to the post indicator valve sholl be tested by Special Districts.All fire lines, hydrants, and the P.I.V. shall be tested & inspected by the local Are Agency per County Are Code.
5. Double check detector check valve assembly with byposs double check shall be installed whereSpecial Districts determines an extreme hazard exists. Installation details shall be approvedby Special Districts prior to installation. (See Std. 880).
6. The fire deportment connection shall be installed and located as required by the local Are Agency.
7. Post indicator valves shall be locked with a break-away lock. The top of the P.I.V. shall not beless than thirty-six inches (36j above finished grode.
COUNTY OF LAKE
SCALE:OWN: SS I
PAGE 2 OF 3 Q1l(: EP
VAULT SIZESD.C. SIZE WlDlll LENGTH
4- 4' 4'
6- 4' 4'
B- 5' 5'
lO- S' 5' SINGLE CHECK
DETECTOR IN VAULT
NONE IDATE: JUNE.2013N'PRO\IED ALE NO.M. OEWNGER STD.- 879
o•.... ~o 0::Z t-
o Z~ 4(
~ ~is 0Wa..
24"
12"
18" Dia. HingedReading Lid(See Details Below)
UTIUTYVAULT 5' x 5' VAULT (See Engineer'sApprovedUst)-------------------------,r------- I
I unUlYVAULT 4' x 4' VAULT (See Engineer'sApprovedUst) I: ~--------------------------~ :zl I I I01 I I I01 I I I~I I I I5, , I I8, I' I0::1:g I 1lQ l:::i I I~I •.•.. 1 '
10 ,0:: I (/) I~,~ I~Io I0:: W I0..10(/), W I0:: I ~ I°l:i: Izl I I~,t5 I01 z I
E: :(i'j' I
: : II ~--------------------------~II \L ~---------~
VAULT PLAN
PLAN
1/S" steel hinge pinLength as req'd.
Weld to ,,,,d;ng Ud~
~
1-1/4'"11111 I I 4~.r
, 1/4" Steel checker plate lid
1/S" Thick x 1" wide x 6" longSteel stop welded tobottom of steel lid.
Steel.bracket from3/32" x 1/2" widestock weld to under-side of vault cover.1-4.75"1
ii1 IIIIIII IL.J
'-STOP
Drill 1/2" diam. :i,hole.
ELEVATION
READING LID DETAILSN.T.S.
NOTES1. Reading lid shall be centered over
the by-pass meter.
2. Galvanize coat all parts after welding.Vaults that are to be placed in pedestrianway must have lids with "all-grip"surface in lieu of galvanizing.
COUNTY OF LAKE
SINGLE CHECKDETECTOR IN VAULT
SCALE: NONEOWN:SS
PAGE3 Of' 3 CHi<: EP
Special Districts Maint.
Responsibility
Property Owner
Responsibility
Building Inspector Fire Dept. Inspector
Approved4",6",B"or 10" double check valve
Provide 1" conduitfor tamper switchcontrols when required.(see note 8)
Blind flange on tee(tapped for 4" ifpumper connectionis required)
r Concrete pad to extend/ 6" beyond risers .
• ~: (both sides)
~
4" 90' Siamese pumperconnection with dual2 1/2" outlets
i (when required. See note 7)
~'" -- 4" NippleI>- 4" check valve
r.-10) -\:'-,
\ - I •
'\. v'" #".,' ,..'-:.J
Factory installedbypassassembly.Ueter wm besuppliedand instolledbySpecialDistricts uponapprovalof theBuildingInspector.
• ••• :, •••• w ,4 ••••• w. t' .... : ...~... : .:.' ..~.
3" thick concrete pad ~min. 2'-0" wide for4"1Il and larger assemblies
Double gate valve assembly
I Shut-off valves\ (See note 6)
Test cocks1 2 3
, .-,1__ (See note,~ I
, ,".iI'" .•.•/L:" •••.•/
•". ....•.
from back
...
12" 'Ilin. above finished gradeor 6 above the inundationlevel, whichever is higher
For 4" & largerinstall adjustablesupports.(Two required)
Sidewalk
NOTES:
1. This Standard is required for:0.) all connections serving commercial fire sprinkler systems.b.) any fire line connections to properties with auxiliary water supplies.c.) sites with multiple fire line connections to the District water system.
2. Approved double check detector backtlow assemblies sholl be shown on ustof approved backflow devices" of lotest revision. by the University of Southem CalifomiaFoundation for Cross Connection Control & Hydraulic Research.
3. All test valves shall be fitted with 1/4" female test cocks.
4. Double check detector assembly sholl be located as close as possible to thesidewalk or public right-of-way.
5. Any cover or screening for this assembly must have both the local Fire Agency& Special Districts approval prior to installation.
6. Shut-off valves to be resilient wedge type 0.5. & Yond will bechoined and padlocked in the open position.
7. Must have specific approval of the local Fire Agency prior to installation.
8. The installation shall be provided with electronic supervision monitoring whenrequired by the local Fire Agency.
9. Double check detector shall be the some size as the fire line except when a12" fire line is required, then a 10" double detector check bocktlow assemblyis required.
COUNTY OF LAKE
DOUBLE CHECK DETECTORFIRE LINE BACKFLOW ASSEMBLY
10. Restrained joints are required for all new construction from gate valve to90" ell. Thrust blocks are only required where existing services are beingmodified and restrained joints are not used.
SCALE:OWN: SSCHI<: EP
NONE DATE: JUNE,2013APPROIIED F1LENO.•••• DEWNGER STD.- 880
Low Profile Hydrantand lateralPer Std. 858(See note 4)
Low pressurewater system
@\Restrained joints(see note 8)
'0
Mainlinegate valver to remain in closedposition to isolatepressure zones. CD
Vault - (see note 2)
F/ C ----...........
PLAN VIEW
•..
High pressurewater system
Are hydront jand lateralPer Std. 857(See note 4)
COUNTY OF LAKE
FILE NO.STD.- 881
30M Min.36M Max.cover
-..1~
-"" Typical dirt stop per Std. 872at all vault openings(Grouting optional)
(see note 5)
-- Valve & riserPer Std. 877
PRESSURE REDUCING VALVES
SCALE: NONEOWN:SSCHK: EP
Set lid to openperpendicular to curb
3/4- Drain rock - min.
4 x 12 Redwood
6MThick x IBMwidecontinuousClass MAMconcrete footing.
Finishedgrade or top
NOTES:
1. Make 3/4. top tap - install risers as shown.2. See the engineer's approved list for approved
vaults and covers.
3. The low flow by-pass (part numbers 8-13)shall be installed unless otherwise approvedby Special Districts and shall be a min. 4.in size. If a single P.R.V. is installed, center invault and change parts Number 4 to 90- flangedells, and delete part 5.
4. Install fire hydrant and low profile hydrantonly when required by Special Districts.
5. 2M schedule 40 P.V.C. drain pipe shall be installedfrom a perforated sump canister to anexisting drainage system or to daylight.
6. Valves IBM and larger shall be butterfly valves.Valves 16Mand smaller shall be resilient wedge gate valves.
7. All pressure reducing valves to be epoxy fused, inside and outside.(See the engineer's approved list)
8. Restrained joints are required for all new constructionfrom mainline gate valve to vault. Thrust blocks are onlyrequired where existing services are being modified andrestrained joints are not used.
NOTE:Surge anticipator valve Installation isshown. Pressure relief valve InstallationIs similar except no sensing line isrequired.
Valve Box And Riser(See Std. 877)
,
utility Box(See Engineer's Approved Ust'
Face of Curb'r." ••
. '.' .~./::,:.~.";~:~;,~~;'::~] t\
====== ===~~fc;latero'
Redwood BlockingkI Required
Concrete Pier Block
1" Type "1(" capper sensing line - attachto surge anticipator. Make 1" horlzontaltop connection to water main. See theengineer's approved list for Std. 863 forapproved tapping toddles &c valves.
..•. ,-'-. -"
Precast concrete drop inlet with galvanizedfrome &c grote.Size to be determined by the DesignEngineer & approved by Special Districts.
12" Min. above finished grode___ or 6" above Inundation level
whichever Is higher.finished Grode
10 Gauge - 1/2" wire mesh sereen- tack weld to 'nterlor of outlet.
Drain Pipe - (See Note 2)
Bose
~~I~0 (J)...,C~Vlr "'0;0 ~Vlr,'l ;oG) CI"Tl I"Tl
~(J)
Z (J) »o c z 10003~~Z ;0 -I
~~11"Tl ; ;;
c~ I"Tl ~ ~OrO» - t~ I"Tl ;0r,'l "Tla:!J 2 < ~ ~'1 f;i ~ ~ <(X)~~ < I"Tl(X)....• I"TlN c..o
PARTSUST
NO. ITEMDESCRIPTION, Flanae x M.J. 90' - Size ,.. Reaulred2 C.I. Fl. 90' Ell - Size kI Reaulred3 0.1. Fl. Spool - Lenath kI Reauired4 Valve - See Engineers approved list& Fl. D.I.P. - Lenoth ,.. Reaulred
@ fClbricclMd W.1cklcl steel DItchar9t(s.. Not. 4)
0 Flange Adapter - Size kI Required
~1. Service loterol pipe shall be either 4" dlomster or equal in size to the
surge anticipator valve, whichever Is greater. The pipe materlal shallBe CI. 50 or PC 350 Ductile Iron. unless otherwise shown on the plans. Shouldthe surge anticipator valve be smoller than 4", Instoll a flangedreducer as required on the Inlet side of the valve.
2. Discharge woter sholl droln either to on existing drainage system or todaylight. The Project Engineer shall submit design to the approprlateagencies for approval.
3. All piping &c fittings on the discharge side of the surge anticipatorvalve shall be equivalent in size to the valve.
4. Discharge rller shall be fabrlcated from standard welded steel pipe.Welding sholl conform to AWWAStandard C206. The rlser a•• emblyshall be tape coated per AWWAStandard C209.
5. Reltrained Joints are required for all new construction from gate valveto lower 90' bend. Thrust blocks are only required where existing servicesare being modified and restroined Joints are not used.
3/8"~ x 2-1/4"bolt with washerplate on outsideof meter box
Meter box
ELEVATION
DETAILOF BRACKET
2" x 1/4" steelbrocket
Steel cover set flush with finished
nut
Extensions asrequired
Closure c!cInsect screen
,. Schedule ~ pvcwater pipe c!c fittlngs
Redwood blocking
- Service saddles (See Std. 863)
2~I~»~~~I CO):;0 :;0 C~» ~z z
o ~ 0 10003
F~ ~ ~ < ~~i ~ c~ ~ C ~Ore~ < ~ t,." IT! ""'-.. » ~
~~~ :;0 ~I !"1ex> z !'.)o 0ex>. -VJ ("oj
1" 90' EII-F.I.P.x Compo
Corporation Stop
Water Main
1" HOPEOR Galv. Pipe
NOTES
1. Air Release Valves sholl have 1" threadedinlets unless otherwise shown on plans.
2. See Engineer's approved list forall ports.
..
1',
To remote-readlocation to bedetermined bySpecial Districts.
Water line to building
PVC conduit if required(See Note 3)
Meter box and cover(See Engineer's Approved List)
bar
• Resetter (size to match meter)(See Engineer's Approved List)
~ jir ." c __ t
- "r
Special Districts forces to
• and install 5/S" or 1" meter
/ "( 1I Well II Holding I
TankI II L, ;til-ij11:
. II, ,III ,II I ,I AdapterII II . d 'I I as reqUire '~"', '
-4L ~ ~_1- t c"
NOTES ,i ...•!": ,i!
1. Contractor;: to installholes. "
•...•.,;.
"schedule SO PVC spacer bar-with6ut.'- ..-,.- ..•...
,, '
, 2. All meter -boxes~ vaults and pits shall be bedded on 3"minimum thick, 3i4" drain' rock, AB-2, or. other c1ea~material with typical sand, equivalent of 20 minimumuncontaminated by ,'native ~'soil, against compacted orundisturbed base.'.: The gravel bed shall extend to a 47minimum beyond t all sides} of the meter box. Box shall. setflush with the -top.of curb, sidewalk or ground, whichever isapP.licable. .)
3. '1" PVC electrical conduit with '.pull cable may be, required.where a remote-read meter is to' be.•.•installed. Only /long-radius ells may be used. Conduit installation 'to beinspected by Special Districts. ~- '•..
I'.•..4. Location of meter requires pri~r approval by Special- .,Distr:icts. ,.' . -. ,
..•._ . i ~~j t:' ,5. Meters larger than-1" 'requires prior approval by SpecialDistricts. _. ~~;," ,\ ~r\:
; , "'). , ,."..6. Traffic loading box 'and lid to be installed in alldriveways or.loc.ations-where -vehicular traffic may occur, andwherE~specified on. pJans..- Box shall be installed so that thesteel cover is set flusr with finished surface.
!,-
SCALE:OWN: 55'CHK: EP
fiLE NO;STD.-884
1. Spacer bar-without holes to be installed between ball valves. Special Districts Forces to removespacer bar, install water meter and connect wiring.
3. Water meter must be mounted in a horizontal position.Water meter to be mounted a minimum of 3 feet and a maximum of5 feet above finished floor.The location of the water meter will be determined by Special Districts.
4. Connecting wire to be installed in 1/2" diameter PVC conduit.Meter, conduit and wire may not be installed in areas with explosive atmospheres.
VERTICAL INSTALLATION
RESETTERREQUIRED
Existing
Straight ball valveswith handles ---
meter coupling
METER SETTINGASSEMBLY PARTS LIST
Straight ball valves
/
with handles
/ Unions as needed
, --- Existing water line
METER SIZE RESETTER SPACER BAR(See note 1)
5/8" x 3/4" (See Engineer's 1"~x 7-3(,:" LG.approved list) SCHL. 80 C PIPE
1" (See Engineer's 1-1/4"~ )( 11" LG.approved list) SCHL. 80 PVC PIPE
2. Receptacle to be located on the outside wall of building.Receptacle to be mounted a minimum of 3 feet and a maximum of 4 feetabove finished grade. The location of the receptacle will be determinedby Special Districts.
5. Special Districts will maintain the water meter only.All plumbing and wiring is the responsibility of the property owner.
Schedule 80 PVC spacer
HORIZONTAL INSTALLATION
NOTES:
To receptacle - (See note 2)-----,I
Conneetlng wire Is 3 lood #22 AWG \:
~ ~ ~rTltn»l~"Utn r »"'Uf:1 "'U;o ~
o<=: Cz ;0 ~> ~F"D~ ~fTI~ ~~i'" 0I;g", ~~ o~g~ ~» fTI fTI :;uM ;o(/) •.••
(I)" (/)0 td r"• :!I 2: zQ ~1~~fTI:J ~ex> ~ ~ (/) Q.ex>. 0(J1 t::
~.......'.•......
::E:~ ~fTl C::0
,~Z (f)0 » 10003~~ Z 3: ~ilfTl "'U
C Cz ~0 G)~
(f) tf:1~
~a :!J
c..c: ~'1 I;j z
0f'1CX>Z~ Zcx>P~(J) UI
~
with tubing bender
x 2' x 4" thick concrete ~pad
..
3/8" stainless steel ball valve(800 lb.) with 3/8" stainless steelcompression fittings(See Engineer's ,Approved List)
1" x 24" galvanized iron pipe'-2'
APPROVEDTAPPINGSERVICESADDLES:
(See Engineer's Approved List for Standard 863)
'~ 3/8" rigid stainless steel tubing,I ".,'
';,l:;
Where
-"t
gate valve
\
o
(See note 3)
."f.: ." ,.
'Eo!' .., " ...,.. I ~.•.
.hrifi{;t,::J FiiJI~~~-.,OL r ~~
--;
:1-,r ••
,.
I J. r 2" resilient seated./ . (See Std. 877)
Aluminum cast cabinet,(See Engineer's Approved List)
nil'ple 3" long
..::: .~\ ~ 2"brass bushing and stainless steel~..,.:J~ male adaP:e, ..wllh compression coupling
" ..' Concrete. pier with redwood blockingJ ~
~.
All 3/8" tubing shall be wrapped in 10 mil tape.
Where planter strip exists, install min. 18" behind F/Csidewalk is contiguous, install 12" behind sidewalk.
1. If more than one length of 3/8" stainless, steel tubing is required• i --
,stainless steel compression couplings shall be used.
NOTES:
2.
3.
~
><
.
. . .., ." . ...,~. < ';
,'" "; .,,!- "\. '"
J '. '
"~II
.)
Valve box and riser(See Std. 877)
( ',-
"
'I
Se""ce saddle ~
: .
Water main
. :"'.'
Special Districts Maint.
Responsibility
Property Owner
Responsibility
Building Inspector Fire Dept. Inspector
Provide 1" conduitfor tamper switchcontrols when req'd.(see note 8)
r Concrete pad to/ extend 6" beyond
.:; risers. (both sides)
Factory installed bypass= ~ assembly. Meter supp~ied~ and installed by Special
Districts uponapproval of theBuilding Inspector.
...• -.. .~" .."
3" .th;ck concrete podJmin. 2'-0" wide for4"91 and larger assemblies
6"Nin.
from back of sidewalk
.I.P
Shut-off valves(see note 3)
.. '" ....;" ".
For 4" & largerinstall adjustablesupports.(Two required)
12. tnin. above finished gradeor 6 above inundation level,whichever is higher
Sidewalk
, -_:J" .~ .••/- (See note 9).•. \,../
~--,
NOTES:
1. Aboveground single check detector valve assembliesmay only be used on fire linesserving private fire hydrants. Wheresprinklers are served, use double ~heck dete~torper Std. 880. Whenabove ground installation is not possible due to site constraints,use single check detector in vault per Std. 879.
SCALE:OWN:SSCHI<: EP
2. See Engineer'sApprovedlist for Std. 879 for approvedDetector checks.
3. Shut-off valves to be resilient wedgetype O.S. c!c Y. and will be chainedand padlockedin the open position.
4. All test valves shall be fitted with 1/..... female test cocks.5. Detector check assemblyshall be located as close as possible to the
sidewalkor public right-of-way.
6. Any cover or screeningfor this assemblymust have both local Fire Agencyc!c Special Districts approval prior to installation.
7. Detector check shall be the same size as the fire line except a 10.detector check assemblyis permitted when a 12. fire line is required.
8. The installation shall be providedwith electronic supervisionmonitoring whenrequired required by the local Fire Agency.
9. Restrainedjoints are required for all new construction from gate valve togO" ell. Thrust blocks are only required where existing services are beingmodified and restrained joints are not used.
COUNTY OF LAKEABOVE GROUND
SINGLE CHECK DETECTORASSEMBLYNONE DATE: JUNE,2013
APPROIIED FILE NO.
M. DaUNG£R STD.- 888
...•~....• :
.,
'.
r
,.
. .~~,',
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