Question 1

Is Kamiah water safe to drink?

Accepted Answer

Kamiah (PWS ID: 101611104) has 160 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 200 people using Groundwater sources.

Question 2

How many people does Kamiah serve?

Accepted Answer

EPA SDWIS reports that Kamiah serves 200 people (this public water system's service population, not the municipal population of Lapwai or any other city). It is a Native American-owned system using Groundwater water sources with 45 service connections. The operator address is listed in Lapwai, EPA Region 10 — Tribal Water Systems.

Question 3

What type of violations does Kamiah have?

Accepted Answer

Kamiah has 160 total violations: 6 health-based violations (MCL exceedances or treatment failures), 140 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Kamiah water?

Accepted Answer

No PFAS testing data is available for Kamiah under the EPA's UCMR5 monitoring program.

Question 5

What water source does Kamiah use?

Accepted Answer

Kamiah uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Question 6

Where does this data come from?

Accepted Answer

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Question 7

How does Kamiah's violation count compare nationally?

Accepted Answer

Kamiah has 160 recorded EPA SDWIS violations, fewer than 18% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 82% of that cohort has fewer violations than Kamiah. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

Contaminant	Category	Count	Latest
Coliform (TCR)	MR	38	2014
Consumer Confidence Rule	Other	11	2017
Coliform (TCR)	MCL	6	2011
Nitrate	MR	5	2016
Chlorine	MR	5	2024
Lead and Copper Rule	MR	4	2017
DICHLOROMETHANE	MR	2	2013
o-Dichlorobenzene	MR	2	2013
1,2,4-Trichlorobenzene	MR	2	2013
p-Dichlorobenzene	MR	2	2013
1,1-Dichloroethylene	MR	2	2013
1,2-Dichloroethane	MR	2	2013
Carbon tetrachloride	MR	2	2013
Trichloroethylene	MR	2	2013
1,1,2-Trichloroethane	MR	2	2013
Tetrachloroethylene	MR	2	2013
CHLOROBENZENE	MR	2	2013
Benzene	MR	2	2013
Toluene	MR	2	2013
Vinyl chloride	MR	2	2013
Gross Alpha, Excl. Radon and U	MR	2	2014
trans-1,2-Dichloroethylene	MR	2	2013
Combined Uranium	MR	2	2014
Styrene	MR	2	2013
Antimony, Total	MR	2	2008
2,3,7,8-TCDD	MR	2	2013
cis-1,2-Dichloroethylene	MR	2	2013
Combined Radium (-226 and -228)	MR	2	2014
1,2-Dichloropropane	MR	2	2013
Xylenes, Total	MR	2	2013

Kamiah

Kamiah standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Kamiah

Nationwide peers

Cross-state systems with comparable violation load