Water Quality in Twain Harte, CA (95383)
EPA violation data for public water systems serving ZIP code 95383.
Active Health Violations
2 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 65% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
3,782
Population
14
Water Systems
10
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (14)
Twain Harte Community Services District
Sierra Village Mutual Water Co
All resolvedLeisure Pines Mutual Water Co
1 health-basedHeavenly Hills Christian Camp
Sugar Pine Rv Resort
All resolvedWaterfall Lodge Improvement Co
Twain Harte Valley Mwc
1 health-basedSugar Pine Rv Park
Meadowbrook Park Imp Assoc
Marvin Silverman
Last Chance Water System
Thomason Tuolumne Rd. Prop (Steve'S Plac
Sleepy Hollow Mutual Water Co
Blue Mountain Minerals
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jan 2025
Copper (Cu)
Exceeds limitSampled: Jan 2022
How Does This Compare?
Twain Harte (95383) has more violations than 65% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.