2021-12-29_PERMIT FILE - M2021009

• Permit No: M2021009
• IBM Index Class Name: Permit File
• Doc Date: 12/29/2021
• Doc Name Note: Appendix 3 - Preliminary Blast Plan
• Doc Name: Adequacy Review Response
• From: Lewicki & Associates/Young Ranch Resource, LLC
• To: DRMS
• Email Name: AME
• Email Name: MAC
• Media Type: D
• Archive: No

Table 1. CDPHE Domestic Water Supply Numeric Standards
CDPHE Groundwater
Anal te* Unit Method HoldingTime
y Standards**
Oxidation Reduction Potential-ORP(field) mV Field NA NA
pH(field) SU Field NA 6.5-8.5
Specific Conductance(field) µmhos/cm Field NA NA
Temperature(field) °C Field NA NA
Turbidity(field) NTU Field NA NA
Aluminum(AI)Dissolved mg/1 200.7 6 months 5
Antimony(Sb)Dissolved mg/I 200.7 6 months 0.006
Arsenic(As)Dissolved mg/I 200.8 6 months 0.01
Barium(Ba)Dissolved mg/I 200.7 6 months 2
Beryllium(Be)Dissolved mg/I 200.7 6 months 0.004
Beta and Photon Emitters mrem/year 900 6 months 4
Bicarbonate mg/I as CaCO3 2320E 14 days NA
Boron(B)Dissolved mg/I 200.7 6 months 0.75
Cadmium(Cd)Dissolved mg/I 200.7 6 months 0.005
Calcium(Ca)Dissolved mg/I 200.7 6 months NA
Carbonate mg/I 2320B 14 days NA
Chloride mg/I 300 28 days 250
Chromium(Cr)Dissolved mg/I 200.7 6 months 0.1
Cobalt(Co)Dissolved mg/I 200.7 6 months 0.05
Copper(Cu)Dissolved mg/I 200.7 6 months 0.2
E Coli mpn/100ml Colilert 24 hours NA
Fluonde(F) mg/I 300 28 days 2
Free cyanide(CN) mg/I SM 4500 CN 1 14 days 0.2
Gross Alpha Particle Activity pCi/I 900 6 months 15
Hydroxide mg/I as CaCO3 2320B 14 days NA
Iron(Fe)Dissolved mg/I 200.7 6 months 0.3
Lead(Pb)Dissolved mg/I 200.7 6 months 0.05
Lithium(Li)Dissolved mg/I 200.7 6 months 2.5
Magnesium(Mg)Dissolved mg/1 200.7 6 months NA
Manganese(Mn)Dissolved mg/I 200.7 6 months 0.05
Mercury(Hg)Dissolved mg/I 245.1 28 days 0.002
Molybdenum(Mo)Dissolved mg/I 200.7 6 months 0.21
Nickel(Ni)Dissolved mg/1 200.7 6 months 0.1
Nitrate as N(NO3-N) mg/I 300 48 hours 10
Nitrite as N(NO2-N) mg/I 300 48 hours 1
pH(lab) SU SM4500 h+ within 24 hours of receipt at lab 6.5-8.5
Potassium(K)Dissolved mg/I 200.7 6 months NA
Selenium(Se)Dissolved mg/I 200.7 6 months 0.02
Silver(Ag)Dissolved mg/I 200.7 6 months 0.05
Sodium(Na)Dissolved mg/I 200.7 6 months NA
Solids-Total Dissolved(TDS) mg/I SM2540C 7 days 400
Solids-Total Suspended(TSS) mg/I SM2540D 7 days NA
Specific Conductance(lab) µmhos/cm SM2510B 28 days NA
Sulfate(SO4) mg/I 300 28 days 250
Thallium(TI)DISS mg/I 200.7 6 months 0.002
Total Alkalinity mg/I as CaCO3 SM2320B 14 days NA
Total Colifoms org/100ml Colilert 24 hours 2.2
Total Petroleum Hydrocarbons mg/I 8015B-DRO 7 days extraction/40 day after extraction 0.0005
Uranium(U)DISS mg/I 200.7 6 months 0.0168-0.03
Vanadium/Y)Diss mg/I 200.7 6 months 0.1
Zinc(Zn)DISS mg/I 1200.7 16 months 2
*All analytes will be analyzed at the same laboratory except E Coli and Total Colifoms.These parameters will be analyzed at a separate laboratory that
specializes in bacteria analysis.
**The abow standards onginated from the Colorado Department of Public Health and Environment Regulation NO 41.The more stringent standard will be
used if more than one standard exists for a parameter.
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