Tap WaterIndex

← Idaho

Tap water quality report

Comeback Bay Water Assn

EPA monitoring tested this supplier for 43 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

43
contaminants tested
9
detected
30
people served
4
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Private
Counties served
Bonner

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.

4
health-based violations
68
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
RPT Monitoring Resolved 2024-10-17
Other Monitoring Resolved 2016-11-11
Other Monitoring Resolved 2016-11-11
Other Monitoring Resolved 2016-11-11

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
Nitrate
935.5 µg/L 9.4%
of the EPA limit 10000 µg/L
worst single sample: 940 µg/L
24/32 SYR4 2012–2019
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2025
Combined Radium (-226 And -228)
0.7345 pCi/L 15%
of the EPA limit 5 pCi/L
worst single sample: 0.7900 pCi/L
4/4 SYR4 2013–2019
Barium
47.6 µg/L 2.4%
of the EPA limit 2000 µg/L
worst single sample: 50 µg/L
3/3 SYR4 2013–2019
Arsenic
4.915 µg/L 49%
of the EPA limit 10 µg/L
worst single sample: 5.1 µg/L
2/4 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
2.48 pCi/L 17%
of the EPA limit 15 pCi/L
worst single sample: 2.5 pCi/L
2/2 SYR4 2016
Cadmium
1 µg/L 20%
of the EPA limit 5 µg/L
 1/3 SYR4 2013–2019
Combined Uranium
1.51 µg/L 5%
of the EPA limit 30 µg/L
 1/2 SYR4 2016
Nitrate-Nitrite
320 µg/L 3.2%
of the EPA limit 10000 µg/L
 1/2 SYR4 2019
34 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCarbon TetrachlorideChloroformChromiumDichloromethaneDibromochloromethaneEthylbenzeneFluorideMercuryNitriteSeleniumStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
POPPINO, SUE
Phone
208-255-8997
Email
[email protected]

Frequently asked questions about Comeback Bay Water Assn

Is Comeback Bay Water Assn tap water safe to drink?

EPA monitoring detected 9 contaminants in Comeback Bay Water Assn'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 Comeback Bay Water Assn's water?

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

How many people does Comeback Bay Water Assn serve?

Comeback Bay Water Assn reports serving 30 people in Idaho, per its EPA record.

Has Comeback Bay Water Assn had any water quality violations?

The EPA has 68 violations on file for Comeback Bay Water Assn, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 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.