Water Quality in SANTA MARIA, CA (93454)

EPA violation data for public water systems serving ZIP code 93454.

110

Total Violations

5

Health-Based

105

Monitoring / Reporting

108

Resolved

What does this mean?

108 of 110 violations have been resolved. 5 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 105 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 32 Population served: 112,587

Violations Detail (110 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
NitrateHealth-BasedN/A12Jan 13, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A12Jan 13, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
LEAD AND COPPER RULE REVISIONSHealth-BasedN/AN/AOct 16, 2024ActiveN/A
LEAD AND COPPER RULE REVISIONSMonitoringN/AN/AOct 16, 2024ActiveN/A
EndrinMonitoringN/AN/AFeb 15, 2024ResolvedN/A
Total Polychlorinated Biphenyls (PCB)MonitoringN/AN/AFeb 15, 2024ResolvedN/A
EndrinMonitoringN/AN/AFeb 15, 2024ResolvedN/A
LASSOMonitoringN/AN/AFeb 15, 2024ResolvedN/A
LASSOMonitoringN/AN/AFeb 15, 2024ResolvedN/A
Di(2-ethylhexyl) phthalateMonitoringN/AN/AFeb 15, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(2)

Nitrate

02

Jan 13Resolved

Nitrate

02

Jan 13Resolved

2024(86)

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

Endrin

03

Feb 15Resolved

Total Polychlorinated Biphenyls (PCB)

03

Feb 15Resolved

Endrin

03

Feb 15Resolved

LASSO

03

Feb 15Resolved

LASSO

03

Feb 15Resolved

Di(2-ethylhexyl) phthalate

03

Feb 15Resolved

Di(2-ethylhexyl) phthalate

03

Feb 15Resolved

HEXACHLOROBENZENE

03

Feb 15Resolved

HEXACHLOROBENZENE

03

Feb 15Resolved

Picloram

03

Feb 15Resolved

Picloram

03

Feb 15Resolved

BHC-GAMMA

03

Feb 15Resolved

BHC-GAMMA

03

Feb 15Resolved

Atrazine

03

Feb 15Resolved

Atrazine

03

Feb 15Resolved

Dinoseb

03

Feb 15Resolved

Dinoseb

03

Feb 15Resolved

Glyphosate

03

Feb 15Resolved

2,3,7,8-TCDD

03

Feb 15Resolved

2,3,7,8-TCDD

03

Feb 15Resolved

2,4-D

03

Feb 15Resolved

2,4-D

03

Feb 15Resolved

Heptachlor

03

Feb 15Resolved

Heptachlor

03

Feb 15Resolved

Methoxychlor

03

Feb 15Resolved

Methoxychlor

03

Feb 15Resolved

Toxaphene

03

Feb 15Resolved

Toxaphene

03

Feb 15Resolved

Dalapon

03

Feb 15Resolved

Dalapon

03

Feb 15Resolved

Diquat

03

Feb 15Resolved

Diquat

03

Feb 15Resolved

Endothall

03

Feb 15Resolved

Endothall

03

Feb 15Resolved

Di(2-ethylhexyl) adipate

03

Feb 15Resolved

Di(2-ethylhexyl) adipate

03

Feb 15Resolved

OXAMYL

03

Feb 15Resolved

OXAMYL

03

Feb 15Resolved

Simazine

03

Feb 15Resolved

Simazine

03

Feb 15Resolved

Hexachlorocyclopentadiene

03

Feb 15Resolved

Hexachlorocyclopentadiene

03

Feb 15Resolved

Carbofuran

03

Feb 15Resolved

Carbofuran

03

Feb 15Resolved

Heptachlor epoxide

03

Feb 15Resolved

Heptachlor epoxide

03

Feb 15Resolved

2,4,5-TP

03

Feb 15Resolved

2,4,5-TP

03

Feb 15Resolved

Benzo(a)pyrene

03

Feb 15Resolved

Benzo(a)pyrene

03

Feb 15Resolved

Pentachlorophenol

03

Feb 15Resolved

Pentachlorophenol

03

Feb 15Resolved

1,2-DIBROMO-3-CHLOROPROPANE

03

Feb 15Resolved

1,2-DIBROMO-3-CHLOROPROPANE

03

Feb 15Resolved

ETHYLENE DIBROMIDE

03

Feb 15Resolved

ETHYLENE DIBROMIDE

03

Feb 15Resolved

Chlordane

03

Feb 15Resolved

Chlordane

03

Feb 15Resolved

Total Polychlorinated Biphenyls (PCB)

03

Feb 15Resolved

Glyphosate

03

Feb 15Resolved

Thallium, Total

03

Feb 13Resolved

Arsenic

03

Feb 13Resolved

Beryllium, Total

03

Feb 13Resolved

Beryllium, Total

03

Feb 13Resolved

Antimony, Total

03

Feb 13Resolved

Antimony, Total

03

Feb 13Resolved

Selenium

03

Feb 13Resolved

Arsenic

03

Feb 13Resolved

Nickel

03

Feb 13Resolved

Nickel

03

Feb 13Resolved

Mercury

03

Feb 13Resolved

Mercury

03

Feb 13Resolved

Selenium

03

Feb 13Resolved

Nitrite

03

Feb 13Resolved

Nitrite

03

Feb 13Resolved

Fluoride

03

Feb 13Resolved

Fluoride

03

Feb 13Resolved

Chromium

03

Feb 13Resolved

Chromium

03

Feb 13Resolved

Cadmium

03

Feb 13Resolved

Cadmium

03

Feb 13Resolved

Barium

03

Feb 13Resolved

Thallium, Total

03

Feb 13Resolved

Barium

03

Feb 13Resolved

How Does This Compare?

SANTA MARIA (93454) has 110 recorded violations, including 5 health-based. 2 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

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

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.

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