Community Water System · PWS OR4100541
Monument, City Of
Operator location Monument, Oregon - smaller served population (≤ 999) at 115 people served; 222 SDWIS violations on record from surface water sources.
- 115
- People served (this PWS)
- 222
- EPA violations (this PWS)
- 29
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Monument, City Of standing, high SDWIS violation third
115 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 13% is middle-third health share (≤ 23%).
The verdict
Monument, City Of sits in the upper third of the sitemap cohort by violation count (222), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (115; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 13% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 222
- Total EPA violations on record
- 13%
- Health-based (MCL / treatment failure)
- 115
- 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
- Community
- Owner Type
- Local
- Connections
- 91
- County
- Grant
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 149
- Treatment Tech Violations
- 27
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 74 | 2025 |
| Surface Water Treatment Rule | TT | 25 | 2025 |
| Coliform (TCR) | MR | 14 | 2008 |
| Consumer Confidence Rule | Other | 5 | 2025 |
| Nitrate | MR | 5 | 2007 |
| Public Notice | Other | 3 | 2021 |
| Xylenes, Total | MR | 2 | 2024 |
| Coliform (TCR) | MCL | 2 | 1994 |
| Lead and Copper Rule | TT | 2 | 2021 |
| TTHM | MR | 1 | 2006 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2006 |
| Arsenic | MR | 1 | 2005 |
| Endrin | MR | 1 | 2005 |
| Toxaphene | MR | 1 | 2005 |
| Dalapon | MR | 1 | 2005 |
| Diquat | MR | 1 | 2005 |
| Simazine | MR | 1 | 2005 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2005 |
| Picloram | MR | 1 | 2005 |
| Dinoseb | MR | 1 | 2005 |
| Hexachlorocyclopentadiene | MR | 1 | 2005 |
| Atrazine | MR | 1 | 2005 |
| LASSO | MR | 1 | 2005 |
| Heptachlor epoxide | MR | 1 | 2005 |
| 2,4,5-TP | MR | 1 | 2005 |
| Benzo(a)pyrene | MR | 1 | 2005 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2005 |
| Chlordane | MR | 1 | 2005 |
| DICHLOROMETHANE | MR | 1 | 2005 |
| p-Dichlorobenzene | MR | 1 | 2005 |
Violation Count vs. the National Corpus
Monument, City Of has 222 recorded EPA violations, 87% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 13% carry more. 13% of this system's own violations are health-based (29 of 222), 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)
222 Higher than most more violations than 87% 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 Monument, City Of
EPA SDWIS lists 115 people served and 91 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
222 violations · 115 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Monument, City Of
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Oregon compares on the same EPA violation measures. Oregon 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.