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Non-Transient Non-Community Water System · PWS 020000015

Tuscarora Nation School

Operator location Sanborn, EPA Region 2 — Tribal Water Systems - smaller served population (≤ 999) at 175 people served; 34 SDWIS violations on record from groundwater sources.

175
People served (this PWS)
34
EPA violations (this PWS)
3
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Tuscarora Nation School standing, mid SDWIS violation third

175 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 9% is middle-third health share (≤ 23%).

The verdict

Tuscarora Nation School lands in the middle third by violation volume (34), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (175; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 9% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.

34
Total EPA violations on record
9%
Health-based (MCL / treatment failure)
175
People served by this PWS (SDWIS)
N/A
PFAS compounds detected (UCMR5)

Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
1
School/Daycare
Yes
MCL Violations
2
Monitoring Violations
18
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule RPT 8 2024
Revised Total Coliform Rule MON 7 2025
Total Haloacetic Acids (HAA5) MR 2 2024
TTHM MR 2 2024
Chlorine MR 2 2025
Coliform (TCR) MCL 2 2010
E. COLI MR 2 2016
Nitrate MR 1 2024
Nitrite MR 1 2024
Chlorine MRDL 1 2011
Lead and Copper Rule MR 1 2024

Violation Count vs. the National Corpus

Tuscarora Nation School has 34 recorded EPA violations, 46% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 54% carry more. 9% of this system's own violations are health-based (3 of 34), and it ranks unranked by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

34 Lower than most fewer violations than 54% of 29,740 water systems

the national water-system corpus, bucketed by value

Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source EPA SDWIS · 2026-05-15

Population served record for Tuscarora Nation School

EPA SDWIS lists 175 people served and 1 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.

Sources: EPA SDWIS

Nationwide peers

34 violations · 175 served: nearest cross-state SDWIS matches.

What to do with Tuscarora Nation School

Use this system's EPA-reported record as a starting filter, not a final verdict.

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater