Water Testing
Water Testing Services for Homes, Farms, Businesses & Municipalities
Talk to one of our water and environmental experts for more information on our packages and services
Water Testing Services We Offer
Our dedicated team provides water and environmental testing options to meet the needs of homeowners, businesses, farmers, municipalities and more.
- Drinking Water Testing
- Wastewater Testing
- Pool and Spa Water Analysis
- Groundwater Testing
- Process Water
- Biosolids Testing
- Irrigation and Livestock Water Testing
Why Choose AGSource for Water Testing
Certified
AgSource Laboratories follows strict and rigorous testing standards
Dedicated
Customizable testing solutions to fit your needs
Experienced
Over 50 years of water and environmental testing experience
Water Testing Packages
*Packages vary by location, please contact your preferred laboratory location for more details.
- Annual Water – coliform and nitrate
- Mineral – calcium, copper, hardness, iron, magnesium, manganese, potassium, sodium, sulfate, zinc
- Homeowner – coliform, nitrate, pH + Mineral Package
- Livestock – TDS, pH, chloride, nitrate + Mineral Package
- Irrigation – pH, conductivity, calcium, magnesium, sodium, potassium, boron, phosphorus, bicarbonate, carbonate, chloride, sulfur, nitrate-nitrogen, SAR/salinity
- GAP (Good Agricultural Practices) – colony count for coliform and e.coli using MPN
- Pool and Spa – total coliform, e.coli coliform, pseudomonas, chlorine reading (onsite)
- Metals – calcium, iron, manganese, sodium, arsenic, copper, magnesium, potassium, zinc
- Organic Compounds – Biochemical Oxygen Demand (BOD), carbonaceous BOD, chemical oxygen demand (COD), oil and grease, organic nitrogen
- Nonmentals and Inorganic Compounds – ammonium, chloride, fluoride, sulfate, nitrite, total nitrogen, orthophosphate, total phosphorus TKN (Kjeldahl), nitrate, nitrate plus nitrite
- Physical Testing – acidity, alkalinity, hardness, conductivity, pH, turbidity, volatile acids, volatile solids, total solids (TS), total suspended solids (TSS), total dissolved solids (TDS)
- Microbiological – fecal streptococcus, iron bacteria test, sulfur bacteria test, e. coli, total coliforms, fecal coliforms, enterococcus, bacteria, heterotrophic plate count
Specialized testing available upon request
A good sample is the foundation to accurate analysis. Because different tests require different sampling methods, refer to our guides below. For best results, follow our basic sampling reminders.
AgSource Laboratories Water Sampling Reminders:
- Use a sterile bottle if required for test – AgSource offers free sampling supplies
- Follow sampling instructions for best results
- Label sample bottles correctly
- Fill out sample submission form – include chain of custody (COC) form if needed
- Keep in mind holding times on specific water tests and refrigeration – get those samples to the laboratory in a timely manner
Frequently Asked Questions About Water Testing
How often you should test your water depends on its source and intended use. Private well owners should generally test drinking water at least once a year for bacteria, nitrates, and other key contaminants, while additional testing may be needed after flooding, well repairs, or changes in taste, odor, or appearance. Water used for irrigation, livestock, industrial processes, or regulatory compliance should be tested according to operational requirements, seasonal conditions, or applicable regulations. Regular testing helps identify changes in water quality before they become costly or pose health risks.
A standard water test typically measures a combination of microbiological, physical, and chemical parameters. Depending on the package selected, testing may include total coliform bacteria, E. coli, nitrates, pH, hardness, iron, manganese, calcium, magnesium, sodium, chloride, sulfate, and other minerals. More comprehensive testing is available for metals, organic compounds, nutrients, and additional contaminants based on your water source and testing objectives.