Continental Water Laboratory
Homeowner samples · Mail-in kits
- Arsenic
- Coliform Bacteria
- Lead
- Nitrate / Nitrite
- Pesticides
- PFAS
- Volatile Organic Compounds
Listed on the official state certified laboratory list.
Bacteria samples need a sterile bottle from the lab. Chemistry samples usually take a clean container the lab supplies.
Skip softeners and filters. Remove the aerator, run the water 3 to 5 minutes, then fill without touching the inside of the cap.
Bacteria samples are time-sensitive. Use a cooler with ice packs and hand it in or ship it the same day.
Compare results with EPA drinking water limits. If anything is over, our problem pages explain what it means and how to treat it.
Certified by the Colorado Department of Public Health and Environment (certification CA00044). Listed by CDPHE as accepting outside samples. Certified analytes: Perfluorododecanoic acid, Perfluorohexanoic acid, Perfluorononanoic acid, Perfluorooctanesulfonic acid, 1H,1H, 2H, 2H-Perfluorooctane sulfonic acid, Nonafluoro-3,6-dioxaheptanoic acid, Perfluoro(2-ethoxyethane)sulfonic acid, Perfluorobutanoic acid, Perfluoro-4-methoxybutanoic acid, Perfluoropentanoic acid, N-ethyl perfluorooctanesulfonamidoacetic acid, Perfluorotetradecanoic acid, N-methyl perfluorooctanesulfonamidoacetic acid, 4,8-Dioxa-3H-perfluorononanoic acid, Perfluorobutanesulfonic acid, Perfluorotridecanoic acid, Perfluoropentanesulfonic acid, Perfluoro-3-methoxypropanoic acid, Perfluoroheptanesulfonic acid, 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid, 1H,1H, 2H, 2H-Perfluorohexane sulfonic acid, Perfluoroundecanoic acid, Perfluorooctanoic acid, Perfluorohexanesulfonic acid, Perfluoroheptanoic acid, Perfluorodecanoic acid, Hexafluoropropylene oxide dimer acid, 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid, 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid, Dioxin.
Homeowner samples · Mail-in kits
Homeowner samples · Mail-in kits