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Tap water quality report

Third Addition Water Assn

EPA monitoring tested this supplier for 4 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

4
contaminants tested
3
detected
97
people served
1
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Ground water
Ownership
Private
Counties served
Kootenai

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.

1
health-based violations
17
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2001-07-01 → 2001-09-30
MR Monitoring Archived 2015-07-01 → 2015-09-30
MR Monitoring Archived 2015-07-01 → 2015-09-30
MR Monitoring Archived 2000-04-01 → 2000-06-30
MR Monitoring Archived 1999-07-01 → 1999-09-30
MR Monitoring Archived 1997-07-01 → 1997-07-31
MR Monitoring Archived 1996-07-01 → 1996-09-30
MR Monitoring Archived 1996-04-01 → 1996-06-30
MR Monitoring Resolved 1996-01-01 → 1996-12-31
MR Monitoring Archived 1995-07-01 → 1995-09-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
180 µg/L 1.8%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 2/2 LCR 2023
Nitrate-Nitrite
119 µg/L 1.2%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
1 contaminants tested, none detected
Nitrite

Utility contact

Contact
JOHNSON, DAVE
Phone
208-699-0906
Email
davidnj69@gmail.com

Frequently asked questions about Third Addition Water Assn

Is Third Addition Water Assn tap water safe to drink?

EPA monitoring detected 3 contaminants in Third Addition 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 Third Addition Water Assn's water?

EPA monitoring detected Nitrate, Lead, Nitrate-Nitrite. The full list with the level and data source for each is above.

How many people does Third Addition Water Assn serve?

Third Addition Water Assn reports serving 97 people in Idaho, per its EPA record.

Has Third Addition Water Assn had any water quality violations?

The EPA has 17 violations on file for Third Addition Water Assn, of which 1 is 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.