Community Water System · PWS NY0200325
Scio Water District
Operator location Wellsville, New York - smaller served population (≤ 999) at 990 people served; 58 SDWIS violations on record from surface water sources.
- 990
- People served (this PWS)
- 58
- EPA violations (this PWS)
- 9
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Scio Water District standing, mid SDWIS violation third
990 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 16% is middle-third health share (≤ 23%). Population rank #19,942 of 29,740 among systems serving 500+.
The verdict
Scio Water District lands in the middle third by violation volume (58), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (990; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 16% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #19,942 of 29,740
- Population · /systems
- #765 of 1,204
- Population · NY
- 58
- Total EPA violations on record
- 16%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 365
- County
- Allegany
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 41
- Treatment Tech Violations
- 9
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 24 | 2025 |
| Lead and Copper Rule | MR | 6 | 2009 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 5 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2020 |
| Surface Water Treatment Rule | TT | 4 | 2005 |
| TTHM | MR | 4 | 2020 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2024 |
| Fluoride | MR | 2 | 2012 |
| Nitrate | MR | 1 | 1994 |
Violation Count vs. the National Corpus
Scio Water District has 58 recorded EPA violations, 60% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 39% carry more. 16% of this system's own violations are health-based (9 of 58), and it ranks #19,942 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
58 Around the middle fewer violations than 39% 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 Scio Water District
EPA SDWIS lists 990 people served and 365 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · New York State Department of Health, Public Water Systems
Nationwide peers
58 violations · 990 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Scio Water District
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in New York compares on the same EPA violation measures. New York systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.