OPSU / Murphy-Brown
Water Quality Testing Laboratory

OPSU is pleased to offer water testing services to communities, businesses, schools and individuals in the Oklahoma panhandle and nearby areas. Customers are welcome to send samples or bring them to the laboratory.

All tests include kit for sample collection. These are available at the lab, or can be shipped to you.

Check TESTING SERVICES page for information about test methods and sample collection containers, preservation and handling.

Regulatory accrediting agencies:

  • ODEQ – Oklahoma Department of Environmental Quality
  • KDHE – Kansas Department of Health and Environment
  • TCEQ – Texas Commission on Environmental Quality

Accreditation test areas:

  • WS – Water supply, drinking water
  • WP – Water pollution, waste water
Group Tests
  • Drinking Water Quality $85.00
    • pH
    • Conductivity
    • TDS
    • Hardness (total)
    • Alkalinity (total)
    • Anions (common)
    • Cations
  • Physical Properties $42.00
    • pH
    • Conductivity
    • Alkalinity (Carbonate, Bicarbonate, Hydroxide, Total)
    • Hardness (Calcium, Magnesium, Total)
  • Disinfection $20.00
    • Chlorine (residual)
    • Chlorine (total)
  • Disinfection By-Products $36.00
    • Bromide
    • Bromate
    • Chloride
    • Chlorite
    • Chlorate
  • Irrigation Water Quality $76.00
    • pH
    • Hardness (total)
    • Cations
    • Anions (common)
    • pHC
    • Conductivity
    • Salinity
    • Alkalinity (Carbonate, Bicarbonate, Hydroxide, Total)
    • SAR (traditional)
    • SAR (adjusted)
    • SAR (adjusted RNa)
  • BTEX $80.00
    • Benzene
    • Toluene
    • Ethyl benzene
    • Xylenes
  • Cations and Hardness $32.00
    • Calcium
    • Magnesium
    • Sodium
    • Potassium
    • Lithium
    • Ammonium
    • Hardness, calcium
    • Hardness, magnesium
    • Hardness, total
  • THMs $115.00
    • Bromoform
    • Chloroform
    • Bromodichloromethane
    • Dibromochloromethane
  • VOCs $165.00
    • Volatile organic components per test method EPA 524
Individual Tests
  • Microbiology
    • "Bac-T", Presence/Absence of E. coli and Total Coliform ODEQ-WS $21.00
    • MPN quantitation of E. coli and Total Coliform ODEQ-WS $21.00 additional
    • Chlorine residual, if required $1.00 additional
    • Container and volume not meeting requirements $1.00 additional
  • Physical
    • pH $5.00
    • Conductivity $6.00
    • Hardness (Calcium, Magnesium, Total) $20.00 group
    • Alkalinity (Carbonate, Bicarbonate, Hydroxide, Total) $16.00 group
    • Turbidity $8.00
  • Anions
    • Common
      (Fluoride, Chloride, Bromide, Nitrate, Nitrite, Sulfate, Phosphate)
      $34.00 group
    • Disinfectant by-products
      (Bromide, Chloride, Bromate, Chlorate, Chlorite)
      $36.00 group
    • Individual $16.00 each
    • Nitrate + Nitrite $24.00 group
  • Cations
    • All
      (Lithium, Sodium, Ammonium, Potassium, Magnesium, Calcium)
      $32.00 group
    • Individual $16.00 each
  • Disinfection
    • Chlorine (residual) $16.00
    • Chlorine (total) $4.00 additional
    • Bromate $16.00
    • Bromide $16.00
    • Chlorate $16.00
    • Chlorite $16.00
    • Chloride $16.00
  • Solids
    • Total Dissolved Solids (TDS) $25.00
  • Irrigation
    • pHc $50.00
    • SAR(traditional, adjusted, or adjusted RNa) $36.00 to $50.00
    • Salinity $8.00

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