Community Water System · PWS NY3430041
Bristol WD #1
Operator location Canandaigua, New York - 74% of 57 violations are health-based (upper-third health share (> 23%)); surface water source; 203 served per SDWIS.
- 203
- People served (this PWS) Smaller third of systems
- 57
- EPA violations (this PWS) Middle third of systems
- 42
- Health-based (this PWS) Upper third by health-based share
- No PFAS
- UCMR5 (this PWS) Tested, none detected
Bristol WD #1 standing, mid SDWIS violation third
74% of 57 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 74% is upper-third health share (> 23%). UCMR5: UCMR5 tested, none detected.
The verdict
Bristol WD #1 lands in the middle third by violation volume (57), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (203; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 74% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 tested this system and reported no PFAS above the minimum reporting level.
- 57
- Total EPA violations on record
- 74%
- Health-based (MCL / treatment failure)
- 203
- People served by this PWS (SDWIS)
- 0
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
Based on EPA SDWIS violation history and UCMR5 PFAS testing only, not water taste, odor, infrastructure age, or contaminants outside the federally tracked set.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 60
- County
- Ontario
- School/Daycare
- No
- MCL Violations
- 40
- Monitoring Violations
- 10
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 40 | 2022 |
| Lead and Copper Rule | MR | 4 | 2009 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2025 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| Coliform (TCR) | MR | 2 | 2014 |
| TTHM | MR | 2 | 2025 |
Violation Count vs. the National Corpus
Bristol WD #1 has 57 recorded EPA violations, 60% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 40% carry more. 74% of this system's own violations are health-based (42 of 57), 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)
57 Around the middle fewer violations than 40% 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
How many violations vs. how serious, among peer systems
Bristol WD #1 plotted against 29 peer public water systems (500+ people served), by total violation count (x) and the share of those violations that are health-based (y). The crosshair sits at this sample's own median on each axis. A high violation count does not automatically mean a serious record: most monitoring and reporting violations are minor, not health-based.
Violation volume vs. health-based share
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 8/13/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 8/13/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 8/13/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 8/13/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 8/13/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 8/13/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 8/13/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 8/13/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 8/13/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 8/13/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 8/13/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFEESA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 8/13/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 8/13/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 8/13/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 8/13/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 8/13/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 8/13/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFPeA | 8/13/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 5/14/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 5/14/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| 4:2 FTS | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 5/14/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 5/14/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 5/14/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 5/14/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTrDA | 5/14/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFBS | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 5/14/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFOS | 5/14/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 5/14/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 5/14/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 5/14/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
Health-based violations on Bristol WD #1
42 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NY3430041.
Sources: EPA SDWIS · New York State Department of Health, Public Water Systems
Nationwide peers
57 violations · 203 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.
What to do with Bristol WD #1
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.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.