D37/100
SHERWOOD, CITY OF — Water Quality Report 2026
Serving 19,885 people · Oregon
Water Source
Purchased Surface Water
County
—
System ID
OR4100816
Violations
32
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2021 – July 31, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About SHERWOOD, CITY OF
Is SHERWOOD, CITY OF water safe to drink?
SHERWOOD, CITY OF water receives a grade of D (37/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 32 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has SHERWOOD, CITY OF detected?
69 contaminants were tested in SHERWOOD, CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SHERWOOD, CITY OF have any EPA violations?
Yes, SHERWOOD, CITY OF has 32 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MON, MR. 7 are health-based violations.
How many people does SHERWOOD, CITY OF serve?
SHERWOOD, CITY OF serves approximately 19,885 people, Oregon.
What type of water does SHERWOOD, CITY OF provide?
SHERWOOD, CITY OF sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OR4100816.
How does SHERWOOD, CITY OF compare to other utilities in Oregon?
SHERWOOD, CITY OF scores 37/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Oregon state page for a full comparison of water systems.