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10/12/2017
1
MUNICIPAL STORM WATER
GROUP (SMS4)
ANNUAL MEETINGSan Diego County Office of Education
Educational Facility Solutions Group
September 28, 2017
Welcome
John Quenzer, M.S., CPSWQ, QSD
Annika Kubischta, CPSWQ, QISP ToR
Brianna Martin, CPSWQ, QISP ToR
D‐MAX Engineering, Inc. (D‐MAX)
Joanne Branch
San Diego County Office of Education (SDCOE)
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2
Agenda
• Group Progress
• Storm Water 101
• Current Events• Designation Updates
• Trash Policy
• TMDLs
• Pollutants of Concern
• BMP Highlights
• Summary
GROUP PROGRESS
0
10
20
30
40
50
60
70
80
90
100
A: ProgramManagement
B: Education andOutreach
C: Involvementand Participation
D: Illicit DischargeElimination
E: ConstructionSite Controls
F: GoodHousekeeping
G: Post-Construction
H: ProgramEffectiveness
Per
cen
t C
omp
leti
on
SWMP Program Component
SWMP Implementation Progress2015-16 Group Average 2016-17 Group Average
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3
STORM WATER 101
Storm Water 101
Development (more pavement)
Higher volume runoff
Erosion in earthen channels / streams
Channel widening and paving
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Storm Water 101
What is the big deal?
• Development alters natural processes• Drainage designed to rush water away as fast as possible
• Creates a cumulative effect
• No opportunity to filter pollutants naturally
• LID guide:• www.sdcounty.ca.gov/dplu/docs/LID‐Handbook.pdf
• Instructional videos:
• https://www.youtube.com/watch?v=GrBEEjijxaY
• https://youtu.be/LMq6FYiF1mo
CURRENT EVENTS
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5
Designation Updates
Designation
• It is the intention of the State Water Board to designate school and community college districts in the next permit renewal.
• Outreach will be conducted 2017‐18
• Draft permit anticipated mid‐2018
• Anticipated adoption date in early 2019
Designation Updates
• Your SWMP follows the general idea of the Phase II Municipal Permit (by design), so nothing too shocking.
• Final requirements are still being formulated, but generally more specific than existing (i.e.‐ quarterly hotspot inspections).
• Requirements are phased‐in over several years
• Biggest change to status quo is that designation loops Districts into the trash amendments and TMDL requirements.
• Financial impacts
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6
Designation Updates
Would be under the
Non‐traditional category, which
recognizes different legal
authority from cities and the like.
State highlighted education, good house keeping, and trash control.
Construction requirements will defer to Construction
General Permit
Post‐construction
BMP management
for new development
and re‐development
Incentives to work with
local municipalities
Regulatory Updates
Trash Policy• Schools are not currently considered a “Priority Land Use”
• “A PERMITTING AUTHORITY may determine that specific land uses or locations (e.g., parks, stadia, schools, campuses, or roads leading to landfills) generate substantial amounts of TRASH.”
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7
Regulatory Updates
Trash Policy• “Dischargers that are subject to NPDES permits for discharges of STORM WATER associated with industrial activity (including construction activity) shall be required to comply”
• Construction Sites
• Industrial Facilities (School Bus Maintenance Yards)
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8
Regulatory Updates
Total Maximum Daily Loads (TMDLs)• For each pollutant, numeric level that it must stay below in waterbodies in order to support the beneficial uses (recreation, habitat, etc)
• Established for all waterbodies that are impaired due to high levels of a pollutant
• In San Diego county, most watersheds are impacted for Bacteria, many for sediment, and many for toxicity (heavy metals)
Santa Margarita WatershedHighest Priority Condition TBD
TMDL Nutrients (RainbowCreek)
Lead Municipal Agency TBD
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9
San Luis Rey WatershedHighest Priority Condition Bacteria (lower watershed)
TMDL Bacteria
Lead Municipal Agency County of San Diego
Carlsbad Watershed
Highest Priority Conditions Eutrophication (Loma Alta)Bacteria (Rest of watershed)
TMDL Bacteria (Moonlight Beach)
Lead Municipal Agency City of Carlsbad
10/12/2017
10
San Dieguito WatershedHighest Priority Condition Bacteria
TMDL Bacteria
Lead Municipal Agency City of San Diego
Los Peñasquitos Watershed
Highest Priority Conditions Bacteria, Sediment
TMDLs Bacteria, Sediment
Lead Municipal Agency City of San Diego
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11
San Diego River WatershedHighest Priority Condition Bacteria
TMDL Bacteria
Lead Municipal Agency County of San Diego
San Diego Bay WatershedLead Municipal Agencies Cities of Lemon Grove, National City, and Chula Vista
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12
San Diego Bay Watershed: PUEBLOHighest Priority Conditions Chollas Creek: Bacteria, Copper, Lead, Zinc
Airport Authority: Copper, Zinc
TMDLs Bacteria, Copper, Lead, Zinc (Chollas Creek)
San Diego Bay Watershed: SWEETWATERHighest Priority Conditions Paradise Creek: Riparian Area Quality
East of I‐805: Trash
TMDLs None
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13
San Diego Bay Watershed: OTAY
Highest Priority Conditions Coronado Area: Swimmable Waters
East of I‐805: Trash
TMDLs None
Tijuana River WatershedHighest Priority Conditions Sediment
TMDLs None
Lead Municipal Agency City of Imperial Beach
10/12/2017
14
TMDLs: Where to Focus?
Bacteria TMDLs
• Sewer system management• How are systems being maintained?•What is the emergency response procedure if there is a leak or overflow?
• Trash area maintenance• Are dumpster enclosures covered?• Are lids intact and in place?• Are there leaks or loose debris around?
• Lunch areas• Are custodians following cleaning BMPs?• Are storm drains labeled?
In the News
•San Diego’s response to Hepatitis A outbreak• City street cleaning BMPs include wash water capture, collection, and disposal to sewer.
• “On Wednesday, the city released a request for information to local contractors, asking them to respond if they think they can meet the county’s specific cleaning requirements right down to the concentration of bleach that must be used and covering storm drains to prevent runoff into local waterways.”
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15
Group Activity
There has recently been a focus on discharges by the RWQCB and Cities
• Prompt: You receive a call or email from your local municipality. They tell you that they were doing routine dry weather monitoring downstream, and found water flowing in a pipe that comes from District property.
• What steps do you take to address their concerns?
Group Activity
A: The water was due to custodial hosing of the lunch area tables, what are your next steps?
B: The water was due to storm drain jetting by your contractor, what are your next steps?
C: The water was due to AC condensate flow, what are your next steps?
D: The water was due to a gardening club watering seedlings, what are your next steps?
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16
POLLUTANTS OF CONCERN
Pollutants: Sediment
• Sediment impairs natural biological processes by eliminating habitat for organisms• Reduces filtration potential
• Reduces biodiversity
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17
Pollutants: Sediment
• Sources:• Construction disturbance
• Unstabilizedhillsides/channels
• Unpaved areas
• Source Controls:• Vegetation
• Mulch
• Hardscape (retaining walls, curbs, paving, gravel, rock)
• Sweeping
Pollutants:Trash and Debris• Plastic trach and other debris can be mistaken for food by sea birds, turtles, and other animals, leading to starvation
• Trash can clog storm drains and cause flooding
• Trash decomposes and creates unhealthy water where plants and animals cannot survive
• Pacific patch = twice the size of Texas
• This is why the Trash Policy exists
10/12/2017
18
Pollutants:Trash and Debris• Sources:• Litter
• Unlidded trash bins (dispersion by wind or animals)
• Leaf debris
• Source Controls:• Strategic receptacle placement
• Secure lids
• Education/culture shifts
Pollutants:Bacteria• Bacteria can make people and animals sick
• Sources:• Food waste
• Animal waste
•Wash water
• Trash
• Source Controls:• Housekeeping
• Dry cleaning methods
• Trash management (cover)
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Pollutants: Heavy Metals
• Heavy metals (zinc, copper, lead, nickel, cadmium) are toxic at higher concentrations
• Sources:• Engine and tire wear dust• Galvanized roofing/siding/fencing • Brake dust • Diesel exhaust• Batteries• Metal cutting
• Source Controls:• Contain activities• Cover materials• Housekeeping (vacuum sweep)
BMP HIGHLIGHTS
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20
BMP Highlight: Construction
• Sediment is primary concern on disturbed sites• Perimeter control
• Erosion control
• Inlet protection
• Material storage• Cover for:
• Waste disposal bins
• Metal stockpiles
• Material stockpiles
• Hazardous waste
• Housekeeping
• Stabilize entrance/exits
• Sweep any materials tracked out
BMP Highlight: Illicit Discharge Prevention
• Identify potential discharges both in‐house and by contractors•Wash water
• Mop buckets
• Power washing/hosing
• Gutter flushing
• Drain jetting
• Fire suppression system flushing
• Air conditioning unit condensate
• Irrigation leaks or overspray
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21
BMP Highlight: Illicit Discharge Prevention
• Facilitate correct activities• Ensure mop sinks are accessible• Provide drain covers for use during outdoor cleaning
• Restrict access to hoses (keyed hose bibs)• Plumb AC lines to sewer or landscape
• Ensure vendors are employing appropriate BMPs• Contract language• Activity audits• Discuss with supervisors
• Periodic site walks• Look for evidence of past discharges as well as active flows
• Leak audits•Water meter checks
SUMMARY
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22
Summary
• We will keep you posted on designation talks and send out the draft when available for comment
• In the meantime…• Advise your School Board of anticipated schedule
• Continue running program
• Solidify record‐keeping procedures, as this will become only more important
• Review sewer management BMPs
• Anytime improvements are made at sites, see if storm water improvements can be worked in
• Site visits in FY18• Do your worst! Let’s keep attacking the hotspots, maintenance yards, communal gardens, and trash‐prone areas.
• Will start scheduling in November‐ so expect a call a little earlier than usual.
• Bring your maintenance staff along to double visits as training.
Questions?
Joanne [email protected](619) 929‐6334
Annika Kubischta [email protected](858) 586‐6600 ext. 20
Brianna Martin [email protected](858) 586‐6600 ext. 14
John [email protected](858) 586‐6600 ext. 25