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Roswell Water Users Coop Company

EPA monitoring tested this supplier for 68 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
6
detected
90
people served
12
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Private
Counties served
Canyon

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

12
health-based violations
126
violations on file
7
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2014-08-01 → 2014-08-31
MCL Health-based Archived 2014-08-01 → 2014-08-31
MCL Health-based Archived 2007-09-01 → 2007-09-30
MCL Health-based Archived 2005-09-01 → 2005-09-30
MCL Health-based Archived 2005-08-01 → 2005-08-31
MCL Health-based Archived 2000-12-01 → 2000-12-31
MCL Health-based Archived 1999-10-01 → 1999-10-31
MCL Health-based Archived 1999-09-01 → 1999-09-30
MCL Health-based Archived 1999-04-01 → 1999-04-30
MCL Health-based Archived 1998-12-01 → 1998-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Nitrate
300 µg/L 3%
of the EPA limit 10000 µg/L
 2/34 SYR4 2012–2019
Barium
100 µg/L 5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Combined Radium (-226 And -228)
2.95 pCi/L 59%
of the EPA limit 5 pCi/L
 1/2 SYR4 2013–2019
Fluoride
810 µg/L 20%
of the EPA limit 4000 µg/L
 1/1 SYR4 2019
Total Haloacetic Acids (HAA5)
1.16 µg/L 1.9%
of the EPA limit 60 µg/L
 1/5 SYR4 2012–2019
62 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
STORY, LARRY J
Phone
208-722-5568
Email
[email protected]

Frequently asked questions about Roswell Water Users Coop Company

Is Roswell Water Users Coop Company tap water safe to drink?

EPA monitoring detected 6 contaminants in Roswell Water Users Coop Company's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Roswell Water Users Coop Company's water?

EPA monitoring detected Lead, Nitrate, Barium, Combined Radium (-226 And -228), Fluoride, and others. The full list with the level and data source for each is above.

How many people does Roswell Water Users Coop Company serve?

Roswell Water Users Coop Company reports serving 90 people in Idaho, per its EPA record.

Has Roswell Water Users Coop Company had any water quality violations?

The EPA has 126 violations on file for Roswell Water Users Coop Company, of which 12 are health-based (a contaminant limit or required treatment was breached) and 7 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.