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HomeMy WebLinkAbout1.02 Grand River ConsultingSeptember 9, 2004 Mr. Sazn Potter JolIcy-Potter Ranches, LLC P,O. Box 148 Rifle, CO 81650 RE: eater Supply Investigation Jolley- Potter Ranches; Big Mountain Location Dear Sam: GrandRiver Consulting Corporation Pursuant to your request, we have completed an investigation of potable water supplies available to the Big Mountain location of the Jolley - Potter Ranches. The Big Mountain unit is located approximately 20 miles north of the Town of Rifle, in Garhefd Cooney (Figure 1). Facilities located on the Big Mountain property are currently used for hunting and other recreational purposes. It is our understanding that you propose to expand these facilities and will be seeking a special use permit for Resort Designation from Garfield County. In association with the potential expansion, we have assessed potable water requirements for all facilities that may be located at the Big Mountain location, We have also reviewed water supplies that are physically and legally available to supply the projected potable water demands. Our review has included a site visit to the property during which we observed and measured several important local water sources. We conclude that adequate physical and legal water supplies are available to fully satisfy potable water demands associated with the proposed expansion of facilities on the property. Further, the quality of local water sources is good, and is suitable to provide potable water supplies for the facilities. The results of our investigation are outlined below, RECENU) SEP 13 214 7I0 Cooper Avenue, Suite 200 Glenwood Springs, CG 81601 (970) 945.2237 Fax (970) 945.2977 Mr. Sam Patter September 9, 2004 Page 2 t. •:1 - 3 J r. - -� -_: Big Mountai n Location y_S b l' - f - ? - �- •...7.c � fit.. ,4 .��..r- rr��,_ .•��YM1 ;:.�; :,b` -- '�4:;�. �r`;:tt f ??''•. A � rte. ��i•: 1 •c: \• i• ;1 VF A. IYI skevi517a'sn A. 4 L 'il4[}1�" �� 1 [I ! i h � �Y' may,• . f .•111.r .3(k7'� ..1. g . VF l�V � r' e. 1�1�i... f - Whiskey imp, fteszn air ' • f '1` , • i,- _I - 7'. ter, f ;e 1� hiskev S •rul : �: .. l:�rle ' 1Vloble • 4 ring ��:.i.: `.:•- ��,::�;, � -. P g,� �.. t _ _ x x ' r: 11 , •I' iZY, A ,1. •r: Y S. ti,yi'- 11j j, ck.• 1 'J.. f.. } r l l . d. Z •1• iY t.; 1` ((jj • y i 1. �3 f t r! 't ya x� • 3 � :eta" -- S .51 6. f.r f r rr 1 - •rr. l i'fs: I fLlE1 ! i ec[id Jolley- .Porter c 1,6 06 i'cltlir 7tlltt'v R;us;:i:i!'lmtutit ]ulley- pc}ttca Ranches .i7ltevpotIkrRfancl]- _SM.dm: GrandRi rte. Ranches [?� nr.>vT Cnnxulting Corporation i1RA0.7}!r SCRLE •. s••• is August, 2[}:14 low a loon {.mmr r d. Z •1• iY t.; 1` ((jj • y i 1. �3 f t r! 't ya x� • 3 � :eta" -- S .51 6. f.r f r rr 1 - •rr. l i'fs: I fLlE1 ! i ec[id Jolley- .Porter c 1,6 06 i'cltlir 7tlltt'v R;us;:i:i!'lmtutit ]ulley- pc}ttca Ranches .i7ltevpotIkrRfancl]- _SM.dm: GrandRi rte. Ranches [?� nr.>vT Cnnxulting Corporation i1RA0.7}!r SCRLE •. s••• is August, 2[}:14 low a loon {.mmr r 1` ((jj • y i 1. �3 f t r! 't ya x� • 3 � :eta" -- S .51 6. f.r f r rr 1 - •rr. l i'fs: I fLlE1 ! i ec[id Jolley- .Porter c 1,6 06 i'cltlir 7tlltt'v R;us;:i:i!'lmtutit ]ulley- pc}ttca Ranches .i7ltevpotIkrRfancl]- _SM.dm: GrandRi rte. Ranches [?� nr.>vT Cnnxulting Corporation i1RA0.7}!r SCRLE •. s••• is August, 2[}:14 low a loon {.mmr r Mr. Sam Potter September 9, 2004 Page 3 Water Requirements The Big Mountain location includes land within two watersheds that are tributary to the White River; Thirteen Mile Creek and Whiskey Creek. The primary facilities currently located within the Thirteen Mile Creek area include a main cabin and a bunkhouse. No facilities are located within the Whiskey Creek area at this time. Two distinct phases of expansion are proposed for the property. Phase I will expand the existing main cabin and bunkhouse in the Thirteen Mile Creek drainage. An additional one bedroom cabin will also be developed in this area. Phase lI will involve the development of facilities within the Whiskey Creek watershed. Within the Whiskey Creek area, four cabins and a meeting room are proposed.. Potable water supplies will be required for guest showers and other sanitary purposes. Due to the nature of the activities at the Big Mountain location, potable water use at the facilities will be limited. Guests will not have access to laundry facilities or to individual cooking facilities. Meals will be primarily prepared at a central location. Staff will have access to laundry facilities. We have conservatively estimated that maximum water use for guests will total 25 gallons per capita day (gpcd), and that staff use will total 40 gpcd. These estimates are consistent with historical water use patterns at the Big Mountain location, and are also consistent with other resort properties that we have observed. Based on these values, maximum.-potable water demands are estimated to total 910 gallons per day (gpd) when all facilities are constructed and fully occupied within the Thirteen Mile Creek area (Phase I) (Table 1). Maximum water use associated with the Whiskey Creek area (Phase 11) is projected to be 300 gpd (Table 2). Table 1 Phase I Development; Thirteen. Mile Creek Maximum Potable Water Demands Guest Water Use (gpcd) = 25 Staff Water Use (gpcd) = 40 Maximum Maximum Water Gccu anc Use (gpd) Total Maximum Guests Staff Guests Staff Structure 'Dater Use (gpd) Main Cabin d 4 150 154 310 Bunk House 14 0 350 0 350 Thirteen Ck Cabin 2 0 50 0 50 Livestock & Misc. Use _ _ 200 Total = 22 4 910 Mr. Sam Potter September 9, 2004 Page 4 Table 2 Phase 11 Development, Whiskey Creek Area Event Maximum Potable Water Demands Cycle Guest Water Use (geed) 25 Day 1 Staff Water Use (gped) = 40 710 Day 2 Maximum Maximum Water Day 3 440 Occupancy Use d Total Maximum Guests I Staff Guests Staff Structure Water Use (gpd) One Bedroom Cabin (2) 4 0 100 0 100 Two Bedroom Cabin (2) 8 0 200 0 240 Total u 12 0 339 300 Maximum occupancy of the Thirteen Mile Creek facilities may be associated with two types of operation. During limited periods in the hunting season, facilities may be occupied by eight hunters and six staff for a five day consecutive period, followed by two k days during which occupancy will be limited to a reduced staff-. Average daily A'ate:, usc: during a week long cycle of maximum hunting occupancy is estimated to be about 337 gpd, or an average of about 0.23 gallons per minute (gpm) (Table 3). Ta le 3 Phase I Development, hirteen Mile Creek Area Maximum Water Use Cycle (gallons) Hunting Event Cycle Cycle Day 1 440 710 Day 2 440 710 Day 3 440 710 Day 4 440 80 Day 5 440 80 Day 6 80 80 Day 7 80 80 Total (gallons) = 2360 2370 Average (gpd) = 337 339 Average ( m ) = 0.23 0.24 Peak water use in the Thirteen Mile Creek area may also be associated with multiple day events such as weddings. During these events, peak occupancy may be as high as 26 (22 guests and 4 staff) for three days, followed by reduced staffing the remainder of the week. Average water use through a week long event cycle is estimated to be 2370 gpd or 0.24 gpm (Table 3). Mr. Sain Potter September 9, 2004 Page S Physical Water Supplies Potable water supplies to the ranches will be supplied by springs located near the facilities. These springs will commonly supply water in excess of potable demands. The excess supplies are available for livestock and irrigation use. Currently, the Charley Mobley Spring is used to provide all potable water supplies to the ranch facilities in the Thirteen Mile Creek area. As outlined below, this spring is adequate to supply potable demands of all contemplated development in the Thirteen Mile Creek area (Phase I). As facilities are expanded in the Whiskey Creek area (Phase 11), it may be desirable to utilize additional Iocal water sources. Thirteen Mile Creek (Phase I Development. Water availability from the Charley Mobley spring varies in response to hydrologic and climatic conditions. During the recent critical drought years of 2002 and 2003, discharge of the spring periodically dropped to a minimum flow as low as 0.3 gpm, although discharge of the spring commonly remained greater than this amount. This summer, following five years of drier than normal conditions, flow of the spring has continually exceeded 1.0 gpm. Discharge of the Charley Mobley Spring has been adequate to meet all historical and existing potable water demands associated with the Big Mountain location, even during 2002. Further, the minimum rate of flow observed at the spring in 2002 (0.3 gpm) will be adequate to meet future potable water demands of the resort when all facilities are constructed and fully occupied in the Thirteen Mile Creek area. Whiskey Creek Area Phase II Development . It is anticipated that the Whiskey Spring (Figure 1) may be developed to provide potable water supplies for facilities to be located in the Whiskey Creek Area (Phase II Development). We have inspected and observed the Whiskey Spring and conclude that physical water availability of the spring is much greater than that of the Charley Mobley Spring. The Whiskey Creek Spring will easily supply all potable demands associated with Phase II development of the property, as outlined in Table 2. In the alternative, it is possible to develop local ground water wells near the ranch facilities to meet additional potable demands. As outlined later in this report, any new ground water wells would be operated under exempt well permits and would provide reliable physical and legal water .supply for the Big Mountain location. We also observed several small local seeps and springs that could be developed as ground water wells to provide additional water supplies if desired. 1 Mr. Sam Potter September 9, 2004 Page 6 Legal Water Supplies Key water rights associated with the Big Mountain location are summarized on Table 4. Whiskey Spring and Whiskey Spring Reservoir are within the Whiskey Creek watershed, a tributary to the White River. The Charley Mobley Spring and the Thirteen Mile Creek are tributary to Thirteen Mile Creek, which is also tributary to the White River. The water rights associated with these structures have not historically been subject to a water right call, nor is it anticipated that the water sources will ever be called out -of- priority. Each of the structures is located within the headwaters of intermittent stream drainages. The springs do not generally discharge to a live stream; instead the spring flows infiltrate into the ground a short distance downstream of their origin. Accordingly, curtailment of use of the springs would not result in increased water availability to any senior downstream water rights. As a result the water rights to the springs are not subject to water right administration, and will provide a reliable legal water supply for the ranches. If additional springs are developed as shallow ground water wells, they will be permitted as t.Awnpt wells located oil a tract of land 35 acres or greater in size. Exempt wells are not subject to water right administration. Table 4 Jolley- Potter Water Rights Approximate to ig Mountain Location Adjudication Appropriation Structure Amount Date Date Case No. Whisky Spring 112 n7i 1980 -12 -31 1980 -07 -16 95CW0199 Charley Mobley Spring A- 22.5 m 1980 -12 -31 1979 -09 -01 80CW0286 Thirteen Mile Spring 45 gp 1980 -12 -31 1936 -06 -01 80CW0286 Picnic Spring 45 gpin 1980 -12 -31 1936 -06 -01 80CW0286 Whisky Spring Reservoir • 8.5 ace feet 1999 -12 -31 1996 -06 -01 99CW157 Water Quality q �1k The quality of the Charley Mobley spring was recently tested by Grand Junction Laboratories. Results of this analysis are presented in Attachment 1. The quality of the spring water meets all drinking water standards established by the State of Colorado. No feral coliform was present. Sulfates, hardness and total dissolved solids did exceed recommended drinking water limits. High concentrations of these parameters do not represent a safety or health issue, but may affect the palatability of the water for drinking water purposes. On-site water treatment facilities may be desirable to reduce hardness and sulfate concentrations for Mr. Sam Potter September 9, 2004 Page 7 that portion of the domestic water supply that is used for drinking purposes (i.e. at drinking water taps). It is our understanding that such treatment systems are currently used at the Big Mountain location, and that bottled water is also used far drinking. Summary We conclude that adequate physical and legal water supplies are available to fully satisfy all potable water demands associated with the proposed expansion of facilities on the Big Mountain location of the Jolley- Pottcr Ranches. further, the quality of local water sources is good, and is suitable to provide potable water supplies for the facilities. Fxisting potable water is supplied from the Charley Mobley Spring. This spring is adequate to supply all existing and proposed potable uses on the Thirteen Mile portion of the property. However, as additional potable water demands occur within the Whisky Creek watershed, it may be desirable to develop the Whisky Creek Spring because of its close proximity of the proposed development. iii ^tnrical evidence suggests that the discharge of either the Charley Mobley Spring or Whiskey Creek Spring will be adequate to satisfy potable demands associated with full development at the site. We hope this assessment is helpful. If you have any questions or require any additional information, please do not hesitate to contact us. Sincerely, CONSULTING CORPORATION Enclosure cc: Tom Stuver A T TA, Cl INVI E N I i Water Quality Data JOUN C. KEPUAKT& CU, RAU MUM [NRRAWIH 435 NORTH AVENUE 4 PHONE. (970) 242 -7618 # F:AX: (970) 243 -7235 * GRANO JUNCTION, COLORADO 81501 — ANALYTICAL REPORT Received from: Jolley—Potter Ranches Fd Box 148 Rir`1e,cb 91650 970--625- -22e2 5450 Water Customer No. _ _ Laboratory N©. Sample , 5/1-9/04 7l20 /04 Date Received Elate Reported Lab number 5450 LimitEa for PUb2 is Drinking �arnpl e Ii? Maln 3ti31dzng, k,ztckFen Sink, Supplies, by Cola. 6PM 5 /-i Slk:1;4 SOLW- C e Dept. Health Char I i e Mobley apr inq_ Ail aerlic (A -5) img -Mg /1 Bar i Ltfi na) 0 40 a,o 1 2.-0 f'rq/ 1 £� d rr• i C:C:i ? t�,. Gt=sf; U mg /.1 is, 0(6 mrQ /'I Chr-om i um. (Cr) G:000 ing! 1 i_r:. # sn.g / 1 F1 uori,de °t = 0.23 mg /l 4. Mg /1 0. 000 0 M.g /l. 0.- C1 1:5 m511 Pit- rC :Ur-y ( -Hg:) C ?;010000 mg /:1 O� OC12 .m9 /l Ni tr"ate CN) mg 11 10. Q rrgf I Se t=rri LlM ( 5L%� J. (Y, t)t 6 mg_f 1. 0. 05 ►drq.I I. 611 ver Cfig) 0.0 1 mg/1 0.05 .trtC7 11 Color fCo/F,t Lit-ii t z,O aff i 1:i -al I i. mi t pr-i 7. i(s o,5 -O.1, acceptable Con duct i.��i t ytd25 deg,. C 1230 t_trrhosf.c.m no .o.f. f.i c x a1 1 i:Ifi t SOd -i t-tm CNa.) 15 -m -g!1 2.0 mgll Czk lciUm(,Ca) J76 mg /1 ho offici.ai limit Magne5i Lim (h1.g 48 mg /'l 125 mg /i P0ta Sr. iU (K) 2_3 )nglI no official 11 (nit Ch-1 on tie tCI) 4 'sng /I 25o p1gl I 5tt.1, fate (SO4.) 7111 mg /l 250 mg / l Phenol. ICI kal i -ni ty (CLIC03) Ct -mg/ i. no of f ic -i al I Iffid t: Total Al 1:= %1. i ni ty (CaL03) 7,86 mg/1 r,o toff irr.al 1 i mi t 81. carbonates 4HCO3) 467 mg /1 no- of fi ci al I i.,Tri t Carb.a r to :CCU) {? rng /l r-,o D-f f i.ci-a1 1 i mi t Di 5-solved 5o1 i d5 SIC) mq /I 500 Mq)I Har dne�-::s (EaCU3) 666 {rg /l _ '200 mg.. /.I Turbi di: t MTO) 0.47 1 Bgrtrn(B" 0.0� IT) g/I no of- riaiA1 limit Copper icu) 0 250 trig % I 1.3 mg /I. lr0r, {Ft=) 0. 00 mg /I Cs', 3 mc, /l Manganese (Mn) 0.001 Mq /1 D. -05 mq_.f 1 Mol ybd6n1_trr1 (NO) 0. �. 00 mg /1 r no of r,ici al limit Ammonia( cY.00 mg/1 no offiCial IiMit rEC?sPkIate (r•1 0.49 frig /l no. official limit Zinc: 0.017 mg /l .5, 0 inq/1 Total COI i f orm Bacteria 0 c r�l / i 00rrtl must be I ess Char, 1 'z RSA nr 'r [. C T� ra v i' n =,:i a { .y In 'rj 1 Y - ! R . P['M'i I4!w-