Question 1

Is Wolf Point water safe to drink?

Accepted Answer

Wolf Point (PWS ID: 105300051) has 176 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 125 people using Groundwater sources.

Question 2

How many people does Wolf Point serve?

Accepted Answer

EPA SDWIS reports that Wolf Point serves 125 people (this public water system's service population, not the municipal population of Wapato or any other city). It is a Native American-owned system using Groundwater water sources with 30 service connections. The operator address is listed in Wapato, EPA Region 10 — Tribal Water Systems.

Question 3

What type of violations does Wolf Point have?

Accepted Answer

Wolf Point has 176 total violations: 1 health-based violations (MCL exceedances or treatment failures), 164 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 Wolf Point water?

Accepted Answer

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

Question 5

What water source does Wolf Point use?

Accepted Answer

Wolf Point 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 Wolf Point's violation count compare nationally?

Accepted Answer

Wolf Point has 176 recorded EPA SDWIS violations, fewer than 16% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 83% of that cohort has fewer violations than Wolf Point. 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	27	2016
Chlorine	MR	12	2025
Nitrate	MR	5	2014
Consumer Confidence Rule	Other	5	2017
Lead and Copper Rule	MR	4	2020
Arsenic	MR	3	2014
2,3,7,8-TCDD	MR	3	2020
Revised Total Coliform Rule	RPT	3	2025
Chromium	MR	2	2014
Fluoride	MR	2	2014
Antimony, Total	MR	2	2014
Beryllium, Total	MR	2	2014
Thallium, Total	MR	2	2014
Asbestos	MR	2	2014
Selenium	MR	2	2014
Xylenes, Total	MR	2	2014
DICHLOROMETHANE	MR	2	2014
p-Dichlorobenzene	MR	2	2014
Vinyl chloride	MR	2	2014
1,1-Dichloroethylene	MR	2	2014
trans-1,2-Dichloroethylene	MR	2	2014
1,2-Dichloroethane	MR	2	2014
1,1,1-Trichloroethane	MR	2	2014
Carbon tetrachloride	MR	2	2014
1,2-Dichloropropane	MR	2	2014
1,1,2-Trichloroethane	MR	2	2014
Tetrachloroethylene	MR	2	2014
CHLOROBENZENE	MR	2	2014
Benzene	MR	2	2014
Endothall	MR	2	2020

Wolf Point

Wolf Point standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Wolf Point

Nationwide peers

Cross-state systems with comparable violation load