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June 18,2004

Rcfcrcnce: 800-167.5

590335 B.C. Ltd. Operuring us Regal kdge Box 1005 osoyoos, B.C. '

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Aticntiqn: M i . Adrian Erickson

' Re: we11 Water Quantity: Regal Ridge Development Nine Mile Place - Lots #l, #2, #3, #4 and #5

. . Irztrodaction Summit Enviranmcrltal Consultmnrs Ltd. was retained by Mr. Adrian Erickson of 580335 B.C. Ltd. to evaluate pomp tests on five (5) wdls on thc abovc-noted propertics ne& Osoyoos, B.C. The lots range in area between 4.4* and 5.2 ha, The test results were required uhder Regional District of Okanagm-Similkmen (RDOS) Subdivision Servicing Bylaw No. 2006, Amended by Bylaw 2153, Section 32.10 (''the bylaw"). The bylaw requires proof that cach wdl can producc 2,300 Uday (506 Imperial gallons/day),and has a flow cappacity of at Jest 20 Uminute (4,4 Irnperid gaIlons/m.inute) for one hour; [hat the wclls arc drjllcd and cased,.md that the wells are constructed in such a wiy as to prevent surface water from entering the wdl. This repofl presents the results of thc tests on each of thc fivc wells. Thc assessments included the following tasks:

A sitc rcconnakincc of Nine Mile Placc ("the development") on June 10,2004; . Review of topographic and geologic maps; 0 Review and gmphical analysis of the 24-hour pump tcst data from thc fivc wells, provided by

Regal Ridge; and Review of a regional hydrogeology report prepared by Rock Glen Consulting Ltd. (2003). 0 .

' Siie u~zd Well Descripiions ,The subject properties arc within RDOS and arc locattcd on Anarchist Mountain just south of Highway #3, east of Osoyoos, B.C. The new wells wodd service lots that arc to bc subdividd from an existing property. The development is located at an elevation of about 1,075 ni (3,525')

development are 311 1,ocilted within about 500 m of Njm Mle Creek, which reportedly flows > . < t . , , X S % I above sca lcvval; and .about 7'95 m .(2,61Q'j, &oyc, tFc O k q ~ g d p .V~lcy,~boFt .om~, . .~~-~o~s* in- ~ , the I ..-..*-I.

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18-,lunc-2004 pngc 2

year-round Each well is located on level ground just uppdient from the hcads of ~uIlies on Lhe sbpe that runs toward the creek

Bedrock geology at the Nine' MiIe Pllace site i s conipiised of mphibolitc, schist, and breccia of thc Anarchist Group (Rock Glen Consulting, 2003). Wfic id deposits on the Regal Ridgc sitc include a mix of colluvium, gIaciofluvi.al deposits, and glacial till.

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A search Qf the' B.C. groundwatcr wcll database was completed in June 2004. Thc database indjcates that thcrc arc thrce registered, wells' in the genera1 Anarchist mountain area, All are drilled through unconsblidatd deposits into bedrock, and the reported yields range between 4.6 and 32 Umin (6,620 Uday and 46,080 Uday). The rcgiond iroundwater supply report prepared by Rock Glen Consulting' Ltd. (2003) concluded that the local aquifer at the Regal Ridge development has an adequate capacity to supply the averagc usc volumes for the entire proposed dcvelopment of 300 to 400 residential lots.

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' ' All fivc of the wells were drilled by Kelly's Watcr Well Drilling (2504464628). The wclls arc drilled and csed.with 0.15 m (6") diameter steel to below the depth of the.ovcrburden-bedrock cbntact. The' will heads dl extend above the ground by abbout 0.6 rn and can bc re-sealed. Well depths and the depth.to bedrock are provided in Tablc 1. All of rhe,wclI sites are located within about 500 m of Njne Mile Creek.

24-hour Pump Text Resulis Mr. Daniel BiIodeau performed the pump tests on thc wells between May 4 and May 13,2004. Flow rates were measured using ri calibrated pail iind stopwatch, and water depths in thc wdls were measured using 3 well sounder. The total volume of watcr that is required by'the current bylaw is 2,300 Uday (equal to a constant rate of 1.60 Umin over 24 liours)". Mr. Erickson elected to have the tests c6nductccl at rates somewhat higher than that spccificd in the bylaiv to better assess watcr supply (at least 2.3 Uniin; see Appendices 1 to 5).

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The 'Wdls were tested by pumping at 20.5 Umin for 60 minutes and then at a rate q u a l to or greater than 2.3 Urnin for the remainder of the 24-hour period (Appendices 1: to 5). Well rccovery was then monitored for 60 minutes and then ri-c'hecked about 24 hours aftcr the end of the'test. The drawdown and recovery data (Appendices 1 to 5 ) for the wells,are attached, and a summary is provided in Table 1. Figures 1 to 5 show' the changes in water level over the coursc of Lhe tests, including the iecovcry pcriod.

' Tag numbcrs 00000035078.00000035128, and 00000037979.

rate, ;t fainily of four would usc 1,75G Uday. Okanagan communities are much higher, especially where water w e is not metered.

T"* i F l l l * , , . , - e * w - ? - 7 v * - a - I" b $ . *

'For cornpatisod, d Bk: thc' average nti? bf$s~d~nfid 6dci 1&6-6& ?3f)'I,~&rrc&pPil$ fit &f ih 1999;'At thatn *--= x- - ' - t - ' A1 a stmdy m c , that is 1.2 L/&nult. Avcragc rates in some

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18-June-2004 pogc 3

. All'fivc wells produced mdrc than the required 2,300 L ov& the 24-hour test period (Table l), '

and the drop in watcr level a$ a percentagc of the avxilable water in the wells ranged from 4% to ' 33%. The water level in the wells in Lots #1, #3;'#4, and t 5 were'dl apparently close to equilibrium after 24 hours, but the level in Lot #2 was still trending slighily downwards (Figure 2>. However, Well #2 experienccd very little dxiwdows cvcn when pumped at 20.5 Umin for the first hour (see below) and the volume of wciter that flowed inti the well during the test.(4,404 L) was very close to the ioltime that was pumped out (4,425 L).' Also, th i pumping ratc during the last 23 hours of the test (2.3 Umin) was higher than thc by,law rate (1.6 Urnin). These ' factors' suggcSt bat the by-law rate can be maintained in' the' well on Lot #2 undcr n o m 4 patterns of househo1.d use (i.e. ncgli~ible water use during the night, which allows the well. to recharge). Nevertheless, water conservation measures are recommendcd (see below),

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' Each well was pumpcd at: a' rite of '2O.5 Urninhe foi the first hour to determine if the rcquired minimum 1-how flow rate of 20 Llminute,could br: rnaintainkd.. The required 1-hour flow 'was maintained in d l casscs, and all wells showed some recoveiy after the pumping rare was reduced (Figures 1 to 5).

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. Conclusions Each of the fivc Nin'e Mile Court wclls covered in this rePo& is cased and the casings cxtcnd abovc the ground surface; Bakd an thc rcsults of the pump tests, aIl'Ave welk'produccd the 2,300 Uday requircd by the by-law on the day of thc test and q p & capable of maintaining this capacity. This conclusion assumcs'that the pattern of usc is typic21 of single households; and Givcn the resyks during thc first hour, observcd inflow iaks during .thc tcsts, and the rccovery rates, the wclls appear capable of sustaining h e re,quired one-hour flow capacity of 20 Uniinute.

Thc abdve conclusions arc subject to the attached disclaimer statement: Please note that although thc r&ulis meet the requirmnent.of the bylaw, we reconimczld that property owners follow water conservation practices, which =e appropriate for any property in thc Okanagan Valley hat relies on a wcll. This i s particularly important in the summer and catly Fall when peak use rates we typically much greater than average use rites.

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Wc trust this combletes our assignment at this tirnc. Please call if you have any questions,

'' Lars Uunilci, M-Sc., P.Gco. Hydrologkt Geoscientist

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18-June2004 P"e 4

Enclosures: Table 1 Appendicds 1-5 and FiSures 1-5

References

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Rock., Glen Consulting Ltd. 2003.. Anarchist Mountain Regional. Groundwater Supply Potential. '

Preparcd for 590335 B.C. Ltd.. Osoyoos, B.C. 13 pp. 4 appendices.

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Table 1. Well Information and Pump Test Result Summary -Nine MiIe Place, May 2004. i t 1

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Disclaher

Subject to thc following conditions and limitations, the investigation described in this report has becn conducted in a manner consistent with a reasonable level of care and skill normally ,

exercised by members of the environmental scicnce prdfession currently practicing under similar conditions in the area.

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5.

6.

The scope of the investigation descn'bed In this report has bccn limited by the budget set for the investigation in t h e work prograin. The scope of the investigation has bccn reasonable having rcgard rq that budget constraint.

The investigation describcd in ibis report has been limitcd to tht: scope of work describcd.

The .invcstigition described in this report bas relied upon information provided by third parties concerning the history'of well development and borehole stratigraphy and of well responsc to groundwater pumping (i.e. changes in water level ovcr time). Exc'ept as st&cI in this report, we hive not made an independent verification of'such information.

Thc investigation describcd in this report has been made in the context of existing government regulations gcnerally promdgated at thc date of this report. Except as specifically noted, thc invesligation did not take account of any government regulations not in effect and gcnerally promulgated at the datc of this report.

The findings and conclusions are valid only far thc specific properties identified in thc report.

Since site conditions may change over timc, the report i s intended for iinxnediate usc.

This report i s int.ended for the exclusive use of 59Cb35 B.C. Ltd: I . It may . not be used or relied upon in'any manncr whatsoever, or for any purpose' whatsoever, by any othcr party. S u i t Environmcntal Consul~nts Ltd. makcs no tepresentdtion of fact or opinion of any nature whatsoever to any person or cntitybther than 590335 B.C. Ud.

hi accepting delivery of this report, S90335 B.C. Lid hereby agrees that any and dl cIaims which it may have against Summit Envircinmentat Consultants Ltd. or my of its servaits, agents, or employees arising out of or in any way connected with the investigation described in this report

. or.the preparation of this rcprt, whether such claims are in conhtct or in tort, and whethcr such claims are based on negligence or otherwise, shall be limited t~ a total tmount equal to the fees payable to Summit Environmental Consultmts Ltd. under ow contract with 590335 B.C. Ltd. i,

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Time 'Dopth to Drawdown (min) water (m) (m)

0 43.35 0 60 54.25 10,90

555 54,50 11.75 785 54.67 I 1.32 995 54.58 11.23 1430 54.47 11.12 1490 52.70 9.35 2935 44.80 1.45

DRAWDOWN

305 54.32 10.97

Appendix 1. Pump Test Results for Nine Mile Place Lot #I.

Flow Flow (Lhnin) (igpm)

20.5 4.5 . 2.3 0.5

2.3 0.5 2.3 0.5 2.3 0.5 2.3 0.5 0.0 0.0 0.0 _ , . 0.0

2.3 0.5

Client Site Address: Date of Test: 12-May44 Pump Test Conductcd by: EWlUatQd by:

599335 BC Ltd. dba Regal Ridge Nine Mile Place, Lot 1

Daniel Bilodeau, Regal Ridge Hugh Hamiltort, PAg. Summit Environmental Cbnsultants Ltd.. Vcmon, B.C.

Well depth (rn) 70% of welt depth (m) Static Wa!er Level Prior to Test: Initial Pumping Rate: Final pumping Rate: Total pumping time Total volume pumped (I.) MaKimurn Drawdown (m) Drawdown at end of pumping (m) DrawOown 3s % of watcr depth Specific capacity (Udayh of drawdown)

77.42 54.19 43.35 m 20.5 Urnin 23 Urnin

23.83 nours 4345 11 -32 11.22 3396 391

Degth water itl well at start (m) Level equal to 70% of water depth (m)

4.5 Imperial gollmin 0.5 Imperial pallmin

34.07 53.57

Dcpth remaining at end (m)

Inflow during tcst (L) Af40 Drawdown 270% of depth? no

22.75 Volume remaining (L) 41 3

24 hour recovery (% of max.) 87%

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Summit Environmental Consoftank Ltb.

Appendix 2. Pump Test Results for Nine Mile Place Lot #2.

Time Deplhlo Drawdown flow Flow hiin) water (rn) (rn) (Umin) (igpm)

DRAWDOWN 0 38.75 o 20.5 . 4.5 60 39.92 1.17 2.3 0.5 305 39,57 0.82 2.3 0.6 550 39.48 0.73 ., 2.3 0.5 835 39.40 0.65 2.3 0.5

1465 39.07 1.12 2.3 0.5 1525 39.80 1.05 o.a 0.0 2965 39.42 067 0 .o 0-0

1225 39.40 0.65 2.3 0.5

Client ,

Sile Address: Dah of Test Pump Tast Conductad by: Evaluated by:

Well depth (m) 70% of well depth (m) Static Walw Level Prior 10 Test initial Pumping Rate: Final pumping Rate: Tot4 pumping time Tofal volume purnpcd (1) Maximum Drawdown (m) Drawdown at end of pumping (m) Drawdown as % of walar uepm Specific capacity (Uday/rn of dra\nrdown)

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590335 BC Ltd. dba Regal Ridge Nine Mile Place, Lo1 2

Daniel Bilodcau, Regal Ridge Hugh Hamilton, P.Ag. Summit Enviroohmenhl Consultants Lid., Vernon, B.C.

1 I-May-04

67.66 46.94 38.75 m 26.5 Umin 2.3 Umin

24.42 hours 4425 1,77 1.12

3951 4%

Dcplh water in wclt at start (m) Level equal to 70% of watcr depth (in)

4.5 Imperial gaUmin 0.5 Imperial gournin

28.31 47.24

Dopth remaining at end (m) 27.4 4 Volume remaining (L) 492 Inflow during test (L) 44D4 Drawdown ~70% of depth? Yes 24 hour recovery (% of max.) 43%

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Summit Environmental Consultants Ltd.

Appendix 3. Pump Test Results for Nine Mile Place Lot #3.

DRAWDOWN

Client; . Site Address: Date of TesC Pump Test Conducted by: Evaluated by;

Well depth (m) 70% of well depth (m) Static Water Level Prior to Test Initial Pumping Rate: Final pumping Rate: Total pumping tirnc Total volume pumped (L) Maximum Drawdown (m) Drawdown at end of pumping (m) Drawdown as % of water depth Sp&$k capacity (Udaylm of drawdown)

Time Dcpih to Drawdown Flow Flow (min) wetcr (m) (m) (Lhin) (Igpm)

0 32.20 0 20.5 4.5 do 4756 lS.36 2.3 0.5 305 43.84 11.64 2.3 . , 0.5 540 43.36 11.16 2.3 0.5 770 43.52 11.32 2.3 0.5

1025 43.10 10.90 2.3 0.5 1445 43.22 11.02 2.3 0.5 1505 39.83 7.63 0.0 0.0 2945 34.68 2.48 0.0 0 .o

590335 BC Ltd. dba Regal Ridgc Nine Mile Place, Lot 3

Daniel Biiodcau, Regd Ridge Hugh Hamilton, P,A& Summit EnvLonmentnl Consultants Ltd., Verilbn. B.C.

IO-May44

109.7 i'6.81 3230 m

20.5 Umin 2.3 Urnin

24.08 hours 43'19 15.36 11.02 1 AX 397

DepW water in well at start (rn) 77-53 55.46 Level equal 10 70% of walor depth (m)

4.5 Imperial gaVmin 0.5 Imperial gallmin

Depth remaining at end (m) 62.17 Volume remaining (L) 7128 Inflow during test (L) 41Dl Drawdown <70% of depth? Yes 24 hour recovery (% of max.) Gayv

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Summil Environmental Consultants Lid.

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6b 300 540 755

1000 , l am

1515 2955

Appendix 4. Pump Test Results for Nine Mile Place Lot #4,

45.40 23.15 1.8 0,4 0.4 0.4

45.70 23.45 45.60 23.35 1.8 45.72 23.47 1.8 0.4 45.80 23.55 1 .B 0.4 45.77 23.52 1.8 0.4 42.56 20.31 0.0 0.0 24.52, 2.27 0.0 0.0

Client: ,

Site Address: Date of Test: Pump Test Conducted by: Evaluated by:

Well deplh (m) 70% of well dcpth (m) Static Water Level Prior io Test Initial Pumping Rate: Final pumping Rate; Total pumping time Total volume pumped (I)

' Maximum Drawdown (m) Drawdown at end of pumping (rn) Drawdown a5 % of water depth Specific capacity (Udaylm of drawdown)

590335 BC Ltd. dba Regal Ridge Nina Mile Place, Lot 4

Raoiel Biiodcau, Regal Ridge Hugh Hamilton. P.Ag. Summit Environmental Consultants Ltd., Vernon, B.C.

06-May-04

164.6 115.2 22.25 rn

20.5 Umin 1.8 Umin

24.25 hours 3767

23.55 23.52 17% 1 60

Depth water in well at start (m) Lcvel equal to 70% of water depth (m)

142.3 65.0

4.5 Imperial gaVrnin 0.4 Imparid gal/min

Depth remaining at end (m) 178.79 Volume remaining (L) 2156 Inflow during test (L) 3340 Drawdwn <?O%'of depth? . yes 24 hour recovery ( O h of max.) 90%

I 7ime f Depth lo I Drawdown I Flow 1 Flow I

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Summit Environmental Consuitants Ltd.

Appendix 5. Pump Test Rasults for Nine Mile Place Lot #5.

Time Depth to Drawdown Flow Flow - (min) w;lter(m) (rn) (Llrnin) ( i g p n L

DRAWDOWN 0 6-43 0 20.5 4.5 60 7.30 D.87 9.1 2.0 305 8.99 0.56 9.1 2.0 555 6.96 0.53 9.1 2.0 785 6.98 D.55 9. I 2.0

1170 '6.96 0.53 9.1 2.0 1525 7.00 0.57 9.1 2.0 1585 6.50 0.m 0.0 0.0

Lr 3025 6.49- D.06 0.0 0.0J

Client; . Site Address: Date of Test: Pump Test Conducted by! Evaluated by:

Well depth (m) 70% ofwell depth (m) Static Water Level Prior to Test: Initial Pumping Rate: Final pumping Ratc: Total pumping time Total volumc pumped (L) Maximum Drawdown (m) Drawdown at end of pumping (m) Drawbown as % of water deplh Specific capacity (Udaylm OF drswdown)

590335 3C LtU. dba Regal Ridgo Nine Mile Place, Lot 5

Daniel Bilodgau, Regal Ridge Hugh Hamilton, P,Ag. Summit Environmental Consultants Ltd., Vernon, 8.C.

04-May-04

18.29 f2.80 6.43 m 20.5 t h i n 9.1 Urnin

25.42 hours 14560

6.87 0.57

25Y4 5%

Depth water in well at start (m) Level equal to 70% of walef depth (m)

4.5 Imperial gallmin 2.0 lrnperinl gallrnh

Depth remaining at end (m) Volume remaining (L) Inflow during test (L) Drawdown ~70% Of depth? 24 hour rccavery (% of max.)

11.86 9.99

10.99 99

irlsllq

Yes 93%

Summit Environmental Consultants Ltd.

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Figure I. Pumping Test Nine M i l e Place (Lot I )

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Figure 2. Pumping Test Nine Mile Place (Lot 2)

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Figure 3. Pumping Test Nine Mile Place (Lot 3)

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Figure 4. Pumping Test Nine Mile Place (Lot 4)

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Figure 5. Pumping Test Nine Mile Place (Lot 5)

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