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Ellsworth, Iowa > Water & Wastewater > Wastewater

Wastewater Testing Services

Why Test?

All facilities that discharge pollutants from any point source into surface waters are required to perform regular testing in accordance with their IDNR issued
NPDES operations permit.

Analysis Offered


  • Arsenic
  • Cadmium
  • Calcium
  • Chromium
  • Copper
  • Iron
  • Lead
  • Magnesium
  • Manganese
  • Mercury
  • Molybdenum
  • Nickel
  • Silver
  • Zinc


  • BOD
  • CBOD
  • COD
  • Chloride
  • Cyanide
  • Dissolved Oxygen
  • Ammonia Nitrogen
  • Nitrate Nitrogen
  • Nitrite Nitrogen
  • Organic Nitrogen
  • Ortho Phosphate
  • Poly Phosphate
  • Phosphorus
  • Sulfates
  • TKN


  • E-Coli Coliform
  • Fecal Coliform

    Physical Testing

  • Alkalinity
  • Conductivity
  • Grease & Oil
  • Hardness
  • pH
  • Suspended Solids
  • Total Solids
  • Total Dissolved Solids
  • Turbidity
  • Volatile Acids
Stormwater Discharge

Stormwater can pick up debris, chemicals, dirt, and other pollutants and flow into a storm sewer system or directly to a lake, stream, river, wetland, or coastal water. Anything that enters a storm drain is discharged untreated into the waterbodies we use for swimming, fishing, and for providing drinking water.

The DNR issues stormwater permits to help regulate stormwater contaminants. To help keep you in compliance with your permit, AgSource Laboratories offers a complete testing package along with competitive prices and convenient services.

The AgSource Advantage

  • Free Sample Supplies - call today to order bottles.
  • Convenient Sample Pick-up Routes - Forget the hassle of shipping!
  • Quick Turn Around Time - 18 hour rush test available.
  • Easy to use UPS Labels - Make shipping easy with these labels.
  • Composite Sampler - Let AgSource handle sample taking. We set up, take down and deliver the samples to the lab.

Forms & Information 

Chain of Custody Form

State Certified laboratory specializing in water testing since 1984 for: 

  • Swimming pools
  • Spas
  • Wastewater
  • Storm water
  • Drinking water
  • Public water
  • Well water
  • AgSource Laboratories - Ellsworth, Iowa 515-836-4444ellsworth@agsource.com