Santa Barbara, CA 93105
5 water systems • 520 residents
Good water quality with few concerns
Score: 72/100
Graded on EPA violations, contaminants, severity, compliance, and enforcement history. See methodology.
Data updated June 2026 • Sources: EPA ECHO and EPA Envirofacts
47
Contaminants Detected
111
Violations on Record
47
Health-Based Violations
0
Recent Violations
Grade Breakdown
72 / 100 points
Recommended Water Filters
- ✓Point-of-Use Carbon Filter (NSF-certified for lead)
- ✓Reverse Osmosis or Ion Exchange Filter
- ✓Ultraviolet (UV) Purification
Consult a water quality specialist for personalized recommendations.
Santa Barbara vs CA & National Average
Detected Contaminants
47 contaminants detected across water systems serving this ZIP code
| Contaminant | Category |
|---|---|
| Atrazine | Agricultural |
| Glyphosate | Agricultural |
| Nitrate | Agricultural |
| Nitrate-Nitrite | Agricultural |
| Nitrite | Agricultural |
| Simazine | Agricultural |
| Antimony, Total | Heavy Metal |
| Arsenic | Heavy Metal |
| Barium | Heavy Metal |
| Beryllium, Total | Heavy Metal |
| Cadmium | Heavy Metal |
| Chromium | Heavy Metal |
| Lead and Copper Rule | Heavy Metal |
| Mercury | Heavy Metal |
| Nickel | Heavy Metal |
| Selenium | Heavy Metal |
| Thallium, Total | Heavy Metal |
| Fluoride | Inorganic |
| Coliform (TCR) | Microorganism |
| 2,3,7,8-TCDD | Other |
| 2,4-D | Other |
| 2,4,5-TP | Other |
| Benzo(a)pyrene | Other |
| BHC-GAMMA | Other |
| Carbofuran | Other |
| Chlordane | Other |
| Consumer Confidence Rule | Other |
| Dalapon | Other |
| Di(2-ethylhexyl) adipate | Other |
| Di(2-ethylhexyl) phthalate | Other |
| Dinoseb | Other |
| Diquat | Other |
| Endothall | Other |
| Endrin | Other |
| ETHYLENE DIBROMIDE | Other |
| Heptachlor | Other |
| Heptachlor epoxide | Other |
| Hexachlorocyclopentadiene | Other |
| LASSO | Other |
| Methoxychlor | Other |
| OXAMYL | Other |
| Pentachlorophenol | Other |
| Picloram | Other |
| Total Polychlorinated Biphenyls (PCB) | Other |
| Toxaphene | Other |
| Gross Alpha, Excl. Radon and U | Radiological |
| HEXACHLOROBENZENE | Volatile Organic |
Water System Information
- Systems Serving This ZIP:
- CACHUMA PROJECT, EL RANCHO TAJIGUAS, PAINTED CAVE, SAN MARCOS MUTUAL WATER COMPANY, LAS POSITAS MUTUAL WATER COMPANY
- Population Served:
- 520
- Systems With Violations:
- 4 of 5
- Major Violations:
- 53
- Enforcement Actions:
- 104
Frequently Asked Questions
What does the grade mean?
Our A–F grade ranks this ZIP code's water quality against every other analyzed ZIP in the country, based on EPA data. A = among the best, F = among the most troubled.
Is my tap water safe to drink?
Water systems regulated by the EPA must comply with Safe Drinking Water Act standards. However, if you're concerned about water quality, consider a water filter appropriate for your contaminants.
How often is the data updated?
We update our data quarterly with the latest EPA ECHO and Envirofacts data. Historical violations are tracked to identify patterns.
What filters do you recommend?
Filter recommendations are based on detected contaminants in your area. See our Filter Guide for detailed information about different filter types.