Mokelumne Hill, CA Home Safety: Home Safety 83/100
1 ZIP code · 2 water systems · Updated
ZipCheckup grade for Mokelumne Hill: B.
This ZIP looks solid, with a few items worth a quick check.
Mokelumne Hill, CA: reliable drinking water, above-average safety record, few violations.
How Mokelumne Hill Compares
Data: EPA SDWIS
What You Should Know About Mokelumne Hill Water
- Average lead level: 0.004 mg/L.
- Homes built before 1986: 47% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 13.81 - above typical levels.
Who Supplies Your Water in Mokelumne Hill
2 water utilities share the residential service territory in Mokelumne Hill, CA - out of 2 total systems in federal records.
- B
- B
Overview
We track home safety data for 1 ZIP code in Mokelumne Hill, California (population ~3,227), covering 2 community water systems serving approximately 7,329 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Mokelumne Hill: B (83/100)
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
Mokelumne Hill water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0040 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 95245 | B | Calaveras Pud | 6,286 |
All ZIP Codes in Mokelumne Hill
- 95245 [B]
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.
Health Outcomes in Mokelumne Hill
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
Housing & Infrastructure in Mokelumne Hill
With 47% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
What does a median build year of 1982 mean for water safety in Mokelumne Hill? It means the housing stock straddles two key plumbing thresholds: the 1986 federal ban on lead solder in copper plumbing, and the pre-1970 era when lead pipes were commonly installed for service lines. A meaningful share of homes predates one or both of those cutoffs, creating varied risk levels across the city's housing inventory.
Most homes in Mokelumne Hill 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.
Cost Context: What Remediation Means for Mokelumne Hill Homeowners
Setting Mokelumne Hill remediation figures against its property market, the resulting ratio sits comfortably in the low tier - a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.
Remediation costs in Mokelumne Hill are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 42% below the California average.
Lead Exposure Risk for Children in Mokelumne Hill
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.
Wherever 47% of local housing was built before solder rules changed - as is the case in Mokelumne Hill - a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Mokelumne Hill
Historical NFIP data for Mokelumne Hill contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $395. 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>$1,600</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 Mokelumne Hill, CA