2018-03-09_PERMIT FILE - M2017049 (27)

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NORWEST COR PORAT ION sample bottles will be placed in a cooler on ice and a description of the sample will be recorded in the field book and on the field sheets. The sample information will be added to the chain of custody (COC) in preparation for sample delivery to the laboratory. The samples will be hand delivered the same day as collection within all applicable holding times to the laboratories specified in Table 2.1. TABLE 2.1 SURFACE WATER SAMPLE SUITE Segment 14d Analyte Unit Method Preservative Holding time Standards'* Dissohed Oxygen field L Field None IVA 6 Dissoloed QcYgen i field L Field None N1A 7 H field SU Field None NVA 6.5-9.0 Specific Conductance field mhos/cm Field None N'A NA April-Oct-23.9 Temperature field C Field None NA Nov March-13.0 Turbidityfield NTU Field None NA N/A Arsenic As T-Rec. uQ1L 200.8 Nitric Acid 6 months 100 Beryllium Be T-Rec. ucyL 200.7 Nitric Acid 6 months 100 Bicarbonate L as CaCO3 SM 2320B None 14 days IVA Boron B T-Rec. L 200.7 Nitric Acid 6 months 0.75 Cadmium Cd T-Rec. ucYL 200.7 Nitric Acid 6 months 10 Calcium Ca T-Rec. L 200.7 Nitric Acid 6 months WA Carbonate maJL as CaCO3 SM 2320B None 14 days WA Chloride L 300 None 28 days WA Chromium Cr Total ucYL 200.7 Nitric Acid 6 months WA Chromium(Cr),Hexavalent uq1L 7196A None 24 hours from collection 100 Chromium Cr Trivalent u L 7196A/200.7 Nitric _ calculation from Total and Heravalent 100 Copper Cu T-Rec. u L 200.7 Nita_ 6 months 200 E.Cdi n/100m1 Colilert Sodom r,, oui 126/100m1 Free cyanide(CM mqJL SM 4500 CN I None 14 days 0.2 Flydroidde L as CaCO3 SM 2320B None 14 days WA Lead Pb T-Rec. uq1L 200.7 Nitric Aac 6 months 100 Magnesium T-Rec. mi 200.7 Nitric Acid 6 months NrA Molybdenum Mo T-Rec. u L 200.7 Nitric Acid 6 months 160 Nickel N T-Rec. uQtL 200.7 Nitric Acid 6 months 200 Nitrate as N NO3 L 300 None 48 hours 100 Nitrite as N NO L 300 None 48 hours 10 H lab SU SM 4500 H+ None within 24 hours of receipt at lab 6.5-9.0 Phosporus,Total L 365.1 Sulfuric Acid 28 days 0.11 Potassium T-Rec. ni 200.7 Nitric Acid 6 months WA Selenium Se T-Rec. ucYL 200.7 Nitric Acid 6 months 20 Sodium Na T-Rec. mi 200.7 Nitric Acid 6 months WA Solids-Total DissoKoed TDS L SM 2540C None 7 days NA Solids-Total Suspended(TSS) mg/L SM 2540D None 7 days WA Specific Conductance lab mhos/cm SW51013 None 28 days WA Sulfate SO4 L 300 None 28 days NA Total Alkalinity L as CaCO3 SM2320B None 14 days NA Total Conform /100m1 Colilert Sodium Hydrosuiflte 6 hours WA TPH ucYL 8015B-DRO None 7 days witractiont 40 day after eAraction NA Uranium T-Rec. u L 200.7 Nitric Acid 6 months WA Zinc Zn T-Rec. UgIL 200.7 Nitric Acid 6 months 2000 All analytes will be analyzed at the same laboratory except E.Coli and Total Coliform. These parameters will be analyzed at a separate laboratory that specializes in bacteria analysis. "The above standards originated from the Colorado Department of Public Health and EmAronment Regulation 32 Numeric Standards Table: https://www.colorado.go,Ypacific/sites/defaulUfilest32_2016%2806%29-Appendi)02-1_pdf. 2.3.2 Surface Water Flow Monitoring Three (3) methods of measuring flow may be used in the field including use of a flow meter, a flume, or a float, depending on the amount of flow present and stream and bank TRANSIT MIX CONCRETE CO. SURFACE WATER AND GROUNDWATER MONITORING PLAN 2-3