Water Quality in Modesto, CA (95361)
EPA violation data for public water systems serving ZIP code 95361.
Active Health Violations
16 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 81% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
34,810
Population
69
Water Systems
30
Violations (5yr)
16
Health-Based
Location
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Water Systems Serving This Area (69)
Modesto, City Of
City Of Stockton
3 health-basedCalifornia Water Service - Stockton
Tracy, City Of
Manteca, City Of
All resolvedTurlock, City Of
Lodi, City Of
Ceres, City Of
1 health-basedOakdale, City Of
1 health-basedOid-Oakdale Rural Water System #1
Hunt Wesson Foods
Jehovah'S Witness Sierra Vista Cong
River Oak Grace-Water System
6 health-basedModesto Mobile Home Park
Oid #51 - Sunset Oaks #10
Oid #46 - Sunset Oaks
North Oaks Mutual Water Co
Oakdale Unified School
Tahama Village Mobile Home Park
Sconza Candy Company
1 health-basedKnights Ferry Comm. Svc. Dist.
Oid #52 - Deo Gloria
Oid #22 - Williams Tract
Oid #41 - Mountain View
Oid #45
Country Squire Mobile Estates & Water Sy
Twin Cypress Mobile Home Park
Riverside Crossing Mhp
1 health-basedGolden West Mhp
Kingdom Hall Jehovah Witness
Army Corp Of Engineers
Valley Home School Texas
4n Mobilehome Park
Lone Pine Mhp
Tully Mobile Estates
Country Village Mobile Home Park
Oid #49 - Gilbert
Country Leisure Mobile Estates
Foster Farms Albers Hatchery - Inactive
Pleasant Prairie Mhp
All resolvedRolling Hills No 2
San Andreas Rv Park
1 health-basedPirro S Rentals
Valley Oak Recreation Area
Shively'S Bar & Grill
2 health-basedValley Home School Pioneer
Knights Ferry Recreation Area
Orange Blossom Recreation Area
Whiskey River Saloon
City Of Oakdale -Kerr Park
O'Malleys Duck Inn
Burchell Nursery, Inc
Mchenry Ave Recreation Area
Mid Valley Ag
Red Caboose Restaurant
Pioneer Equine Hospital Water System
Oakdale Golf & Country Club (Eh)
Banda Labor Camp Water System
Tid Woodward Reservoir
River Road Plaza
Oakdale Rural Water System #2
Foster Moore Sda School
Whistle Stop Bar
Cliff Rogers
Oakdale Cheese & Specialties
City Of Oakdale Airport Water System
Produce Stand
Shady Lawn Farm (Summer Camp)
Sky Run Rvp
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Modesto (95361) has more violations than 81% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 30.
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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.