Question 1

Is Nixon water safe to drink?

Accepted Answer

Nixon (PWS ID: 093200168) has 173 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 800 people using Groundwater sources.

Question 2

How many people does Nixon serve?

Accepted Answer

EPA SDWIS reports that Nixon serves 800 people (this public water system's service population, not the municipal population of Nixon or any other city). It is a Native American-owned system using Groundwater water sources with 180 service connections. The operator address is listed in Nixon, EPA Region 9 — Tribal Water Systems.

Question 3

What type of violations does Nixon have?

Accepted Answer

Nixon has 173 total violations: 2 health-based violations (MCL exceedances or treatment failures), 133 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Nixon water?

Accepted Answer

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

Question 5

What water source does Nixon use?

Accepted Answer

Nixon 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

Where does Nixon sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Nixon ranks #22,383 of 29,740 by people served, and #102 of 129 in EPA Region 9 — Tribal Water Systems. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Nixon's violation count compare nationally?

Accepted Answer

Nixon has 173 recorded EPA SDWIS violations, fewer than 17% 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 Nixon. 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
Chlorine	MR	13	2025
Coliform (TCR)	MR	9	2010
Nitrate	MR	8	2021
Consumer Confidence Rule	Other	7	2023
Revised Total Coliform Rule	MON	6	2025
Public Notice	Other	6	2024
Lead and Copper Rule	MR	5	2020
Gross Alpha, Excl. Radon and U	MR	4	2017
Total Haloacetic Acids (HAA5)	MR	4	2023
TTHM	MR	4	2023
BHC-GAMMA	MR	2	2001
2,3,7,8-TCDD	MR	2	2001
Pentachlorophenol	MR	2	2001
Total Polychlorinated Biphenyls (PCB)	MR	2	2001
Xylenes, Total	MR	2	2014
DICHLOROMETHANE	MR	2	2014
o-Dichlorobenzene	MR	2	2014
p-Dichlorobenzene	MR	2	2014
Vinyl chloride	MR	2	2014
1,2-Dichloroethane	MR	2	2014
1,1,1-Trichloroethane	MR	2	2014
trans-1,2-Dichloroethylene	MR	2	2014
Carbon tetrachloride	MR	2	2014
1,2-Dichloropropane	MR	2	2014
Trichloroethylene	MR	2	2014
1,1,2-Trichloroethane	MR	2	2014
Tetrachloroethylene	MR	2	2014
CHLOROBENZENE	MR	2	2014
Benzene	MR	2	2014
Styrene	MR	2	2014

Nixon

Nixon standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Nixon

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems with smaller service footprints