Sherwood, OR: 1 Health Violation - Home Safety 77/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Sherwood: B.
This ZIP looks solid, with a few items worth a quick check.
Tap water monitoring data for Sherwood shows a consistently clean picture in OR - few violations on record, compliance well above the median.
How Sherwood Compares
Data: EPA SDWIS
Sherwood Water: The Quick Version
- Your city's water systems recorded 26 violations in the past 5 years.
- Average lead level: 0.0076 mg/L.
- Homes built before 1986: 28% - older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 10.99.
Water Systems Serving Sherwood
Sherwood, OR draws its residential water from 3 separate providers among the 5 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Sherwood, Oregon (population ~27,999), covering 5 community water systems serving approximately 136,448 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Sherwood: B (77/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Sherwood water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0076 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 12 | 1 |
| Consumer Confidence Report Rule | Reporting | 8 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 6 | 1 |
| Cadmium | Inorganic | 2 | 1 |
| Chromium | Inorganic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 97140 | B | 26 | 1 | City of Sherwood, |
All ZIP Codes in Sherwood
- 97140 [B] - 26 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Sherwood
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Sherwood
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Sherwood's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
For most of Sherwood's housing stock, construction occurred after 1986 - when lead solder in plumbing was federally prohibited. The median build year of 1994 broadly reflects that newer profile.
Most homes in Sherwood were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Sherwood: Remediation Cost in Perspective
Property equity in Sherwood runs well ahead of estimated remediation costs - a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in Sherwood are relatively low compared to home values. The $1,100–$3,400 estimated range is a small fraction of median property value. Home values are 52% above the Oregon average.
Protecting Children from Lead in Sherwood
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Even with citywide samples reading clean and just 28% of Sherwood homes dating to the pre-rule era, individual-faucet conditions remain a separate question that aggregate utility data cannot resolve for one specific address. That gap is structural, not a function of severity.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Sherwood
Historical NFIP data for Sherwood contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $8,762. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,100</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Sherwood, OR