Oklahoma Administrative Code (Last Updated: March 11, 2021) |
TITLE 252. Department of Environmental Quality |
Chapter 301. Laboratory Accreditation |
Subchapter 1. General Provisions |
SECTION 252:301-1-7. General water quality laboratory
Latest version.
- (a) Category groups. A general water quality laboratory may be accredited in the following category groups: metals, nutrients, demands, extractable organics, general chemistry I and/or II, microbiology, pesticides - herbicides - PCBs, purgeable organics, radiological, bioassay, hazardous waste characterization, petroleum hydrocarbons, perchlorate, and/or basic environmental laboratory.(b) Basic environmental laboratory analytes. Basic environmental laboratory analytes include: temperature, five day biochemical oxygen demand, carbonaceous biochemical oxygen demand, chemical oxygen demand, total organic carbon (TOC), total Kjeldahl nitrogen (TKN) , nitrate-nitrite nitrogen, organic nitrogen, ammonia nitrogen, total dissolved solids (filterable residue), total suspended solids (non-filterable residue), volatile residue, total phosphorous, orthophosphate phosphorus (reactive phosphorus), chloride, fluoride, oil and grease, sulfate, pH, specific conductance, dissolved oxygen, turbidity, total residual chlorine, hardness, alkalinity, color, fecal coliform, Escherichia coli, total coliform, cyanide, phenolics, copper, zinc, iron, sulfide, chromium, and hexavalent chromium.