Drinking Water Testing
Public water systems, private well owners, school districts, and those concerned with the monitoring of drinking water can benefit from our analytical services and expertise. Now UCMR3 ready!
Public Water Systems
Detailed information on EPA Standardized Monitoring Framework is available for download (PDF).
EPA’s List of Regulated Contaminants
Volatile Organic Contaminants
- Carbon Tetrachloride
- Vinyl Chloride
Synthetic OrganicÂ Contaminants, includingÂ pesticides & herbicides
- 2,4,5-TP (Silvex)
- Di 2-ethylhexyl adipate
- Di 2-ethylhexyl phthalate
- Dioxin (2,3,7,8-TCDD)
- Ethylene dibromide
- Heptachlor epoxide
- Oxamyl [Vydate]
- PCBs [Polychlorinated biphenyls]
- Coliform bacteria
- Fecal Coliform and E coli
- Alpha emitters.
- Beta/photon emitters.
- Combined Radium 226/228.
- Radon gas
Many water suppliers add a disinfectant to drinking water to kill germs such as giardia and e coli. Especially after heavy rainstorms, your water system may add more disinfectant to guarantee that these germs are killed.
- Chlorine Dioxide
For more information on EPA contaminants, sources, and MCL’s. (Click Here)
The EPA recommends that well water be tested every year.* for total coliform bacteria, nitrates, total dissolved solids, and pH levels. If you suspect other contaminants, test for those. Here is a list to help identify potential problems.
*Testing more than once a year may be warranted in special situations:
- someone in your household is pregnant or nursing
- there are unexplained illnesses in the family
- your neighbors find a dangerous contaminant in their water
- you note a change in water taste, odor, color or clarity
- there is a spill of chemicals or fuels into or near your well
- when you replace or repair any part of your well system
CONDITIONS OR NEARBY ACTIVITIES
|Recurring gastro-intestinal illness||Coliform bacteria
|Household plumbing contains lead||pH, lead, copper
|Radon in indoor air or region is radon rich||Radon
|Corrosion of pipes, plumbing||Corrosion, pH, lead
|Nearby areas of intensive agriculture||Nitrate, pesticides, coliform bacteria
|Coal or other mining operations nearby||Metals, pH, corrosion
|Gas drilling operations nearby||Chloride, sodium, barium, strontium
|Dump, junkyard, landfill, factory, gas station, or dry-cleaning operation nearby||Volatile organic compounds, total dissolved solids, pH, sulfate, chloride, metals
|Odor of gasoline or fuel oil, and near gas station or buried fuel tanks||Volatile organic compounds
|Objectionable taste or smell||Hydrogen sulfide, corrosion, metals
|Stained plumbing fixtures, laundry||Iron, copper, manganese
|Salty taste and seawater, or a heavily salted roadway nearby||Chloride, total dissolved solids, sodium
|Scaly residues, soaps don't lather||Hardness
|Rapid wear of water treatment equipment||pH, corrosion
|Water softener needed to treat hardness||Manganese & Iron, Calcium & Iron, Silica
|Water appears cloudy, frothy, or colored||Color, detergents