General Chemistry

Parameter

Method Reference

Acidity

EPA 305.1

Alkalinity

  Total

EPA 310.1

  Carbonate/Bicarbonate, Hydroxide, and Total

EPA 310.1

Ammonia (subcontracted)

EPA 350.3

Anion Scan

EPA 300.0

Chloride

Fluoride

Nitrate

Nitrite

Phosphate

Sulfate

Biochemical Oxygen Demand (BOD₅, subcontracted)

EPA 405.1

Bromide

EPA 300.0

Chemical Oxygen Demand (COD, subcontracted)

EPA 410.1

Chloride

EPA 300.0

Chlorine, Free, Residual, or Total

EPA 330.5

Color

EPA 110.2

Conductivity

EPA 120.1

Cyanide (subcontracted)

    Total

EPA 335.4

    Weak Acid Dissociable (WAD)

SM 4500-CN-I

    Amenable to Chlorination (ATC, Requires Total)

EPA 335.1

    Soil Extraction Procedure

SW 9013

Fluoride

EPA 300.0

Formaldehyde

MBTH Mtd.

Hardness

EPA 130.2

Methylene Blue Active Substances (MBAS)

SM 5540C

Measures anionic surfactants or detergents

Moisture (Percent Solids)

SM 2540B

Nitrogen

    Ammonia

EPA 350.3

    Nitrate

EPA 300.0

    Nitrite

EPA 300.0

    Nitrate/Nitrite

EPA 300.0

    Total Inorganic Nitrogen

EPA 300.0/350.3

    Total Kjeldahl Nitrogen (TKN, subcontracted)

EPA 351.3

Odor

EPA 140.1

Oil and Grease (Hexane Extractable)

EPA 1664

pH

    Aqueous

EPA 150.1

    Nonaqueous

SW 9040

Phenolics, total

EPA 420.1

Phosphorous

  Total Phosphorous

EPA 365.2

  Orthophosphate (phosphate)

EPA 300.0

Silica

EPA 370.1

Specific Gravity

SM 2710 F

Solids

    Total Solids (TS)

EPA 160.3

    Total Suspended Solids (TSS)

EPA 160.2

    Total Dissolved Solids (TDS)

EPA 160.1

    Settleable Solids

EPA 160.5

Sulfate

EPA 300.0

Sulfide

EPA 376.1

Turbidity

EPA 180.1

Total Organic Carbon (TOC, subcontracted)

EPA 415.1