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Home My WebLink About1.02 Water InformationC John W. Hickenlooner. Governor ,`,e Dr. Larry Wolk, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado Laboratory Services Division 8100 Lowry Boulevard Denver. CO 80230 PO Box 17123 Denver, CO 80217 303-692-3090 www.cdphe.state co.us/Ir Laboratory Results For Sample Number: ENV 2018001815-I STATE OF COLORADO Site ID/PWSID Site Address 1355 QUICKSILVER CT RIFLE Site Description EAST WELL 1 LOT 6 & 7 Customer ID Customer 48574015 George Daniels 176 GH Daniels Blvd CO 81652 Gypsum CO 81637 Test Name Deluxe Colorado Package* Arsenic, Total 0.0083 mg/L Cadmium, Total <0.001 mg/L Calcium (Carbonate) 83 mg/L Copper, Total 0.005 mg/L Iron, Total 0.12 mg/L Lead, Total <0.001 mg/L Magnesium, Total 34 mg/L Manganese, Total 0.010 mg/L Sodium, Total 38 mg/L Uranium, Total 0.0020 mg/L Zinc, Total 0.011 mg/L Hardness Total 220 mg/L Nitrogen, Nitrate/Nitrite 1.0 mg/L Culu:ado Department of Public fiealth and Environment Contact George Daniels Phone 970-471-0920 Fax 970-524-4006 Email ghdgrowit@aol.com Collected By GD Collected 02/08/2018 12:30:00 Received 02/08/2018 16:33:00 Reported 02/28/2018 00:00:00 Bottles 1-LNEUT, 1-250NUT, 1-250M, 1-BACT Matrix Ground Water Field Fluoride Residual Chlorine Temperature at Receipt 17.8 Result ]Units i, CL 0.01 0.005 MRL Method Name 0.001 EPA 200.8 0.001 EPA 200.8 No limit 0.03 establish€ 1.3 0.004 [0.3] 0.015 »ate Analyzed 02/14/2018 00:00:00 02/14/2018 00:00:00 EPA 200.7 02/22/2018 00:00:00 EPA 200.7 02/22/2018 00:00:00 02/22/2018 00:00:00 02/14/2018 00:00:00 EPA 200.7 02/22/2018 00:00:00 EPA 200.7 02/22/2018 00:00:00 EPA 200.7 02/22/2018 00:00:00 EPA 200.8 02/14/2018 00:00:00 02/22/2018 00:00:00 Calculation 02/22/2018 00:00:00 EPA 353.2 02/09/2018 00:00:00 0.002 EPA 200.7 0.001 EPA 200.8 No limit 0.02 establish€ [0.05] 0.002 No Limit 0.1 Establish( 0.03 0.001 [5] 0.01 EPA 200.7 No limit 1 establishE 10 0.05 MRL - Minimum Reporting Limit. MCL - Maximum Contaminant Limit per EPA regulations. BDL - Below Detection Limit. H - Holding Time exceeded. Q - Quality Control limit exceeded. NT - No Test. Units: mg/L - milligrams per liter (ppm), ug/L - micrograms per liter (ppb), pCi - picoCuries LSD Internet Address: coloradostatelab.us !Qualifier John W. Hickenl000er. Govemor Dr. Larry Wolk, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado Laboratory Services Division 8100 Lowry Boulevard Denver. CO 80230 PO Box 17123 Denver, CO 80217 303-692-3090 www.cdphe.state.co.us/Ir Laboratory Results For Sample Number: ENV-2018001815-I ethod Name ] SM 2320B STATE OF COLORADO Test Name Alkalinity, Total Alkalinity, Phenolphthalein pH Solids, Dissolved Conductivity Chloride Fluoride Sulfate Corrosivity-Langlier ] 290 <5 8.4 340 570 8.3 0.31 17 0.60 Result Sodium Adsorption Ratio 1.11 Test Group -Total Coliform PA*" Escherichia coli PA Total coliforms PA Units mg/L mg/L mg/L uS/cm mg/L mg/L mg/L mg/L ug/L E. coli NOT ug/L DETECTED Coliform ug/L ABSENT or less than one (<1), indicates a microbiologically safe sample MCL NA MRL _ 5 no limit 5 establish( [6.5-8.5] 500 10 No Limit 0.5 Establish( [250] 0.3 4.0 0.05 [250] 0.3 Colorado Department of Public Health and Environment Date Analyzed 02/14/2018 00:00:00 SM 2320B 02/14/2018 00:00:00 SM 4500 -H+ -B 02/14/2018 H 00:00:00 EPA 160.1 02/12/2018 00:00:00 SM 2510 B 02/13/2018 00:00:00 EPA 300.0 02/13/2018 00:00:00 EPA 300.0 02/12/2018 00:00:00 EPA 300.0 02/13/2018 00:00:00 Calculation 02/28/2020 18:00:00 Qualifier Calculation SM 9223 B.2.c. 02/08/2018 00:00:00 SM 9223 B.2.c. 02/08/2018 00:00:00 Comments: HUMAN HEALTH Arsenic, Cadmium, Copper, Lead, Uranium, Fluoride, Nitrate/Nitrite concentrations are below EPA health -based standards. Iron, Manganese, Zinc, pH, Solids -Dissolved, Sulfate and Chloride levels meet EPA aesthetic -based standards. Based on these results, the water is safe for human consumption. CORROSIVITY The Corrosivity Index is 6.0, which indicates that the water is scale -forming and may cause scale build- up. IRRIGATION MRL - Mir►in►um Reporting Limit. MCL - Maximum Contaminant Limit per EPA regulations. BDL - Below Detection Limit. 1-1- Holding Time exceeded. Q - Quality Control limit exceeded. NT - No Tost. 1/nits; mg/L - milligrams per liter (ppm), ug/L - micrograms per liter (ppb), pCi - picoCuries LSD Internet Address: coloradostatelab.us John W. Hickenlooner. Govemor Dr. Larry Wolk, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado Laboratory Services Division 8100 Lowry Boulevard Denver. CO 80230 PO Box 17123 Denver, CO 80217 303-692-3090 www.cdphe.state.co.us/Ir Laboratory Results For Sample Number: ENV -2018001815-( STATE OF COLORADO Colorado Deparuncnt of Public Health and Environment The sodium adsorption radio (sodicity) is 1.11. The conductivity (salinity) is 570 uS. The sodium and chloride concentrations (toxicity) are 38 mg/L (recommended level <46mg/L) and 8.3 mg/L (recommended level < 140 mg/L), respectively. The alkalinity is 290 mg/L (recommended level <92 mg/L). Based on the measured sodicity, salinity, toxicity and alkalinity the water is considered a slight to moderate irrigation risk and may have detrimental effects on sensitive crops such fruit trees, clover, radishes, celery and green beans. Less sensitive crops such as tomatoes, broccoli, cabbage, peppers, cauliflower, lettuce, sweet corn, potatoes, carrots, onions, peas, squash and cucumbers may also be affected. Alkalinity >92 mg/L Bicarbonates and carbonates can clog the nozzles of pesticide sprayers and drip tube irrigation systems and reduce the activity of some pesticides. High carbonates cause calcium and magnesium ions to form insoluble minerals leaving sodium as the dominant ion in solution. Registry Comments: MRL - Minimum Reporting Limit. MCL - Maximum Contaminant Limit per EPA regulations. BDL - Below Detection Limit. 11-1-lolding Tim° excoeded. Q - Quality Control limit exceeded NT - No Tcst. Units: mg/L - milligrams per liter (ppm), ug/L - micrograms per liter (ppb), pCi - picoCuries LSD Internet Address: coloradostatelab.us Jehn Water Consultants, Inc. Water Resources Consulting October 9, 2017 Jody Daniels 176 GH Daniels Blvd. Gypsum, Colorado 81637 Re: Quicksilver Court Subdivision Garfield County, Colorado, revised Job No. 720.1 1565 Gilpin Street Denver, Colorado 80218 (303) 321-833.5 (303) 321-8346 (FAX) Dear Jody, The purpose of this letter Report is to address the County's concern about the adequacy of the production of Daniels Well No. 2 for the Quicksilver Subdivision (Permit No. 67565-F). The Water Supply Report, submitted in support of the Quicksilver Subdivision on October 2, 2008, stated that it is anticipated that Daniels Well No. 2 will serve Lots 6 and 7 (a total of four units). That Report also indicated that the maximum average daily demand per well is anticipated to be 2,448 gallons, or an average of 1.70 gallons per minute (gpm), based on the maximum annual demand of 2.74 af/yr per well. As discussed in our October 2008 Report, Daniels Well No. 2 was drilled and completed on March 10, 1999 to a depth of 223 feet. The static water level in the well prior to the test was approximately 119 feet below top of well casing. A pump test was conducted on Daniels Well No. 2 for approximately three hours on February 13, 2008, originally at a rate of 4.2 gpm for 2 hours, then after recovery, at an increased rate of 9 gpm for an additional hour with a full recovery period of 18 -hours. The original 2 -hour test, and the 1 -hour and 18 -hour recovery test are presented in graphical form attached to this letter as drawdown vs time, as Figures 1 and 2, respectively. The drawdown data from both tests, and the recovery data were interpreted to determine the average transmissivity of the aquifer of 53 gpd/ft. This value was used, as discussed in our October 2008 Report, to support the opinion that the well was capable of a sustained yield of at least 1.7 gpm and 2.74 af/yr. For purposes of supporting the determination of whether Daniels Well No. 2 is adequate to support the proposed demand of 1.7 gpm, it is useful to focus on the graph of the 2 - hour test results shown on Figure 1. That graph indicates that the drawdown of the Quicksilver Court October 9, 2017 Page 2 water level in the well at the end of the 2 -hour test at a pumping rate of 4.2 gpm was about 23 feet. In addition to using the time -drawdown graph for calculating aquifer parameters, it can also provide a useful means of predicting future drawdowns (see Groundwater and Wells 2nd Edition by Fletcher Driscoll, 1986). This can be accomplished by extending the drawdown line on that graph an additional 2 hours, which then indicates the drawdown of the water level in the well that would have occurred at 4 hours into the test at that same pumping rate (4.2 gpm), or a total drawdown of 23.6 feet (see Figure 1). This is the drawdown that would have occurred had the well been pumped for 4 hours at 4.2 gpm. Considering that the available drawdown in the well was about 104 feet at the beginning of the test indicates that the well is capable of producing in excess of the required average annual yield of 1.70 gpm (2.74 of/yr) needed for the water supply to meet the development's demands. In my opinion, this analysis indicates that Daniels Well No. 2 is adequate to meet the Quicksilver Court Subdivision's demands and satisfies the County's water supply testing requirements as cited in Section 4-203 (M)(1)(b)(5)(a) of the Land Use Development Code for water supply from ground water sources.. If there are any questions, please do not hesitate to contact me. Sincerely, James L. Jehn, C.P.G. President Jehn Water Consultants, Inc. 0 5 10 c 0 15 - Ci Figure 1: Well No. 2 Quicksilver Court Subdivision 20 - 25 Start Recovery .400 Extended drawdown graph line Approx. drawdown at 4 hours: 23.6264 feet 0 1 2 3 4 5 Elapsed time (hr.) Jehn Water Consultants, Inc. October 3, 2017 Job No. 720.1 0 10 20 30 Figure 2: Well No. 2 1 -hr Test Quicksilver Court Subdivision 40 - 50 - Drawdown (ft.) 60 - 70 80 90 3 • • • Start Recovery Mean Pumping Rate = 9.0 gpm 0 4 8 12 16 20 Elapsed time (hr.) Jehn Water Consultants, Inc. March 11, 2008 Job No. 729.1 Colorado River Fire Rescue David Pesnichak 108 8th Street, Suite 201 Glenwood Springs, CO 81601 RE: Quicksilver Court Lot 4, 5, 6, and 7 July 31, 2017 David: This letter is to advise you that I have reviewed File Number: GAPA-05-17- 8536 through 8539, Quicksilver Court lot 4, 5, 6, and 7, located at Quicksilver Court Subdivision on Grass Mesa. I have made a site visit to this location and reviewed the digital application. I have some concerns with the existing water supply for the subdivision and they are as follow: 1. Lot 7 well supplies the water for the fire suppression water in the pond. With adding two homes to the well, is the usage of water for the homes going to allow for the pond to be refilled when and if needed along with maintaining the full status of the required water supply in the original subdivision plat? 2. On my site visit on Monday, the pond was close to full but the vegetation (cattail's and other growth) in the pond may hinder the drafting of the water from the pond through the intake of the suction pipe. The pond appears to need some cleaning and maintenance. The owners should make contact with me so we can agree on a pond maintenance schedule. I have no other requirements or concerns with the proposed ADU's at this location. Mr. Daniels has responded to my concerns with a plan to reduce vegetation in the pond and has provided me with information on the water wells that supply the water for filling the Fire Suppression Pond. The information provided to me from Mr. Daniels has addressed my concerns to the addition of ADU's. No further comments or concerns for this project. Colorado River Fire Rescue Thank you for allowing me to review this referral and please feel free to contact me with any questions or concerns. . Thank You, Orrin D. Moon, Division Chief/Fire Marshal