Question 1

Is Red Mesa Public Schools water safe to drink?

Accepted Answer

Red Mesa Public Schools (PWS ID: NN0400299) has 857 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 900 people using Surface Water sources.

Question 2

How many people does Red Mesa Public Schools serve?

Accepted Answer

EPA SDWIS reports that Red Mesa Public Schools serves 900 people (this public water system's service population, not the municipal population of Teec Nos Pos or any other city). It is a Local-owned system using Surface Water water sources with 70 service connections. The operator address is listed in Teec Nos Pos, Navajo Nation.

Question 3

What type of violations does Red Mesa Public Schools have?

Accepted Answer

Red Mesa Public Schools has 857 total violations: 52 health-based violations (MCL exceedances or treatment failures), 714 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 Red Mesa Public Schools water?

Accepted Answer

No PFAS testing data is available for Red Mesa Public Schools under the EPA's UCMR5 monitoring program.

Question 5

What water source does Red Mesa Public Schools use?

Accepted Answer

Red Mesa Public Schools uses Surface Water 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 Red Mesa Public Schools sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Red Mesa Public Schools ranks #21,100 of 29,740 by people served, and #52 of 82 in Navajo Nation. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Red Mesa Public Schools's violation count compare nationally?

Accepted Answer

Red Mesa Public Schools has 857 recorded EPA SDWIS violations, fewer than 1% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 99% of that cohort has fewer violations than Red Mesa Public Schools. 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	72	2016
Arsenic	MCL	31	2014
Consumer Confidence Rule	Other	25	2022
Combined Uranium	MCL	21	2014
Revised Total Coliform Rule	RPT	20	2025
Total Haloacetic Acids (HAA5)	MR	19	2018
Arsenic	MR	18	2014
TTHM	MR	17	2018
Combined Uranium	MR	12	2014
Nitrate	MR	11	2010
Diquat	MR	11	2008
Endothall	MR	11	2008
Glyphosate	MR	11	2008
2,3,7,8-TCDD	MR	11	2008
Revised Total Coliform Rule	MON	10	2021
Endrin	MR	9	2005
BHC-GAMMA	MR	9	2005
Methoxychlor	MR	9	2005
Toxaphene	MR	9	2005
Dalapon	MR	9	2005
Di(2-ethylhexyl) adipate	MR	9	2005
OXAMYL	MR	9	2005
Simazine	MR	9	2005
Di(2-ethylhexyl) phthalate	MR	9	2005
Picloram	MR	9	2005
Dinoseb	MR	9	2005
Hexachlorocyclopentadiene	MR	9	2005
Aldicarb sulfoxide	MR	9	2005
Aldicarb sulfone	MR	9	2005
Carbofuran	MR	9	2005

Red Mesa Public Schools

Red Mesa Public Schools standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Red Mesa Public Schools

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems with smaller service footprints