J03 Water Quality Testing Requirements.pdf
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The document contains two tables detailing water quality testing requirements for inorganic chemical and physical characteristics, sourced from the Washington Administrative Code (WAC) Section 246-291-171. Table 1 lists Maximum Contaminant Limits (MCLs) for primary and secondary inorganic substances, including metals like antimony, arsenic, barium, and others, with specific concentration thresholds measured in mg/L. The table notes that while no MCL is established for sodium, it remains significant for public health monitoring. Table 2 outlines physical characteristics with MCLs for turbidity, color, pH, and other parameters, providing regulatory guidance for water quality testing standards.
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Chemicals required to be tested and corresponding Maximum Contaminant Limits (MCLs), modified from the Washington Administrative Code (WAC) Section 246-291-171. Note: A bacterial test is also required.
Table 1
INORGANIC CHEMICAL CHARACTERISTICS
Substance Primary MCLs (mg/L)
Antimony 0.006 Arsenic 0.01 Barium 2.0 Beryllium 0.004 Cadmium 0.005 Chromium 0.1 Cyanide 0.2 Fluoride 4.0 Mercury 0.002 Nickel 0.1 Nitrate (as N) 10.0 Nitrite (as N) 1.0 Selenium (Se) 0.05 Sodium (Na) * Thallium 0.002
Substance Secondary MCLs (mg/L)
250.0
2.0 0.3
0.05 0.1 250.0
Chloride (Cl) Copper (Cu)** Fluoride (F) Iron (Fe) Lead (Pb)** Manganese (Mn) Silver (Ag) Sulfate (SO4) Zinc (Zn) 5.0
*Although there is not an established MCL for sodium, there is enough public health significance connected with sodium levels to require inclusion in inorganic chemical and physical monitoring.
**MCLG (Maximum Contaminant Level Goal), as set by the Washington State Department of Health Lead and Copper Rule.
1.3
0.015
Table 2
PHYSICAL CHARACTERISTICS
Substance Primary MCL Turbidity 1.0 NTU
Substance Secondary MCLs Color Hardness Specific Conductivity Total Dissolved Solids (TDS)
15 Color Units None established 700 umhos/cm 500 mg/L pH
Alkalinity (as CaCO3)
6.5 – 8.5 None established
| Table 1 |
| Table 2 |
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