RIDGEWOOD DIST IMPROV CO
PWSID: OR4100229 · Corvallis, OR · Serves 90 people
According to EPA Safe Drinking Water Information System (SDWIS), RIDGEWOOD DIST IMPROV CO (PWSID OR4100229) in Corvallis, OR is listed as a CWS water system covering about 90 people. The same extract lists 2 health-based violation records spanning 2025-2025. Those 2 health-based rows for RIDGEWOOD DIST IMPROV CO cover contaminants such as Revised Total Coliform Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
RIDGEWOOD DIST IMPROV CO has 2 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. 1 distinct EPA contaminant code appears in this system's record, including Revised Total Coliform Rule. 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)
- OR4100229
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Corvallis, OR
- Population Served
- 90
- Health Violations
- Yes (2)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Revised Total Coliform Rule | 2 | 2 |
Violation History (2)
| Contaminant | Health | Date |
|---|---|---|
| Revised Total Coliform Rule | Yes | Mar 1, 2025 |
| Revised Total Coliform Rule | Yes | Mar 1, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for RIDGEWOOD DIST IMPROV CO?
How many people does RIDGEWOOD DIST IMPROV CO serve?
What violations does RIDGEWOOD DIST IMPROV CO have?
What contaminants have been found in RIDGEWOOD DIST IMPROV CO water?
Compare beyond Oregon
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest RIDGEWOOD DIST IMPROV CO on cumulative violation count (2) and EPA-reported population served (90). Violation-count peers include SAINT REGIS MOHAWK TRIBE, REDBY/RED LAKE, Kickapoo Traditional Tribe.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
RIDGEWOOD DIST IMPROV CO (OR4100229) is drawn from EPA SDWIS. Nearby county systems in this extract include PHILOMATH PUBLIC WORKS; ADAIR VILLAGE WATER SYSTEM; KNOLL TERRACE PARK; VINEYARD MOUNTAIN WATER. Health-based rows (2 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.