GLADSTONE, CITY OF
PWSID: OR4100321 · Gladstone, OR · Serves 12,121 people
According to EPA Safe Drinking Water Information System (SDWIS), GLADSTONE, CITY OF (PWSID OR4100321) in Gladstone, OR is listed as a CWS water system covering about 12,121 people. The same extract lists 18 health-based violation records spanning 2025-2025. Those 18 health-based rows for GLADSTONE, CITY OF cover contaminants such as Total Haloacetic Acids (HAA5), TTHM; they remain historical EPA registry entries, not a current compliance or drinkability score.
GLADSTONE, CITY OF has 18 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 2 distinct EPA contaminant codes appear in this system's record, including Total Haloacetic Acids (HAA5), TTHM. Recorded violations span 2025–2025. Day-to-day primacy enforcement for this system runs through the Oregon drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oregon state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- OR4100321
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Gladstone, OR
- Population Served
- 12,121
- Health Violations
- Yes (18)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 9 | 9 |
| TTHM | 9 | 9 |
Violation History (18)
| Contaminant | Health | Date |
|---|---|---|
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2025 |
| TTHM | Yes | Oct 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| TTHM | Yes | Jul 1, 2025 |
| TTHM | Yes | Jul 1, 2025 |
| TTHM | Yes | Apr 1, 2025 |
| TTHM | Yes | Apr 1, 2025 |
| TTHM | Yes | Apr 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for GLADSTONE, CITY OF?
How many people does GLADSTONE, CITY OF serve?
What violations does GLADSTONE, CITY OF have?
What contaminants have been found in GLADSTONE, CITY OF water?
Compare beyond Oregon
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest GLADSTONE, CITY OF on cumulative violation count (18) and EPA-reported population served (12,121). Violation-count peers include Jicarilla Dulce, WHITE SHIELD WATER TREATMENT PLANT, SAND POINT WATER SYSTEM. Population peers include FORTUNA, CITY OF, THERMALITO WATER & SEWER DIST, ARIZONA WATER CO - SEDONA.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
GLADSTONE, CITY OF (OR4100321) is drawn from EPA SDWIS. Nearby county systems in this extract include SUNRISE WATER AUTHORITY; LAKE OSWEGO MUNICIPAL WATER; OREGON CITY; OAK LODGE WATER SERVICES. Health-based rows (18 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.