2016-09-16_PERMIT FILE - M2016010

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Table 1: Water Quality Mo itoring Parameters continued Analyte* Unit Method Holding time CDPHE Groundwater Standards** Odor threshold odor levels SM2150 48 hours 3 within 24 hours of receipt at PH (lab) SU SM4500 h+ 6.5-8.5 lab Potassium (K) Diss. mg/L 200.7 6 months N/A Selenium (Se) Diss. mg/L 200.7 6 months 0.02 Silver(Ag) Diss. mg/L 200.7 6 months 0.05 Sodium (Na) Diss. mg/L 200.7 6 months N/A Solids-Total Dissolved (TDS) mg/L SM2540C 7 days 400 Solids-Total Suspended (TSS) mg/L SM2540D 7days N/A Specific Conductance (lab) µmhos/cm SM 2510B 28 days N/A Sulfate(SO4) mg/L 300 28 days 250 Thallium (TT) Diss. mg/L 200_7 6 months 0.002 Total Alkalinity mg/L as CaCO3 SM 2320B 14 days N/A Total Coliforms org/100ml Colilert 24 hours 2.2 TPH ug/L 8015E-DRO 7 days extraction/40 day N/A after extraction Uranium (U) Diss. mg/L 200.7 6 months 0.0168-0.03 Vanadium (V) Diss. mg/L 200.7 6 months 0.1 Zinc (Zn) Diss. mg/L 200.7 6 months 2 *All analytes will be analyzed at the same laboratory except E. Coli and Total Coliforms. These parameters will be analyzed at a seperate laboratory that specializes in bacteria analysis. **The above standards originated from the Colorado Department of Public Health and Environment Regulation NO. 41: https://www.colorado.gov/pacific/sites/default/files/41_2016%2806%29hdr.pdf. The more stringent standard will be used if The landowner is encouraged to accompany the inspector, point out items to be included in the documentation, and discuss any items included in the survey and report. The landowner may also document the survey using their own photographs, video camera, and notes. The landowner may choose to collect their own water quality sample and send their portion of the sample to a lab of their choice. The surveyor will have extra sample bottles available for this purpose. If this choice is made, the results from the test need to be shared with Transit Mix Concrete Co. and DRMS to be placed in each landowners file. Transit Mix Concrete Co. also requests copies of any landowner photographs and notes to ensure a complete file of the survey is compiled. After the Survey is completed—Upon the completion of the pre-blast survey the independent consulting company will assemble all documentation collected and compile a comprehensive report stating their findings and the results of the water quality testing. This report along with all photographic and video documentation will be placed on DVD and 3 copies will be generated. One copy will be given to the property owner, one copy will be given to Transit Mix Concrete Co., and the last copy will be kept on file with the Colorado Department of Reclamation, Mining, and Safety (DRMS). A paper copy of the report will be given to the landowner, along with the DVD version, at their request.