California, Maryland: Is the Tap Water Safe to Drink?

2026 EPA water quality data for 34 community water systems serving 60,885+ residents. See violations, PFAS results, lead test results, and safety grades — free.

Is California Tap Water Safe to Drink?

Based on the latest EPA data, California tap water meets all federal drinking water standards. All 34 tested systems have received a safety grade of A or B, with no active health-based violations.

California Water Quality Overview

California, Maryland is served by 34 community water systems providing water to approximately 60,885 residents. These systems draw from groundwater sources. California water systems have recorded 1 health-based violation in their history, though none are currently active. Including monitoring and reporting violations, there are 192 total violations on record.

Water Systems

Health Violations

34/34

Rated A or B

💧 Filter Guide 📖 Violations Explained 📄 Read Your CCR

Find Your Water System

Search by ZIP code to find your exact water provider and see its full EPA report.

All 34 water systems in California

LEXINGTON PARK A

CALIFORNIA, MD · 43,030 people · Groundwater ✓ No recent health violations

COUNTRY LAKES A

CALIFORNIA, MD · 3,016 people · Groundwater ✓ No recent health violations

CEDAR COVE A

CALIFORNIA, MD · 2,728 people · Groundwater ✓ No recent health violations

WICOMICO SHORES A

CALIFORNIA, MD · 1,262 people · Groundwater ✓ No recent health violations

GREENBRIER A

CALIFORNIA, MD · 1,161 people · Groundwater ✓ No recent health violations

BRETON BAY A

CALIFORNIA, MD · 1,012 people · Groundwater ✓ No recent health violations

HUNTING QUARTERS A

CALIFORNIA, MD · 715 people · Groundwater ✓ No recent health violations

ROLLING ACRES A

CALIFORNIA, MD · 699 people · Groundwater ✓ No recent health violations

PINEY POINT A

CALIFORNIA, MD · 672 people · Groundwater ✓ No recent health violations

ST. CLEMENTS SHORES A

CALIFORNIA, MD · 620 people · Groundwater ✓ No recent health violations

CHARLOTTE HALL A

CALIFORNIA, MD · 615 people · Groundwater ✓ No recent health violations

FORREST FARM SUBDIVISION A

CALIFORNIA, MD · 577 people · Groundwater ✓ No recent health violations

LAUREL RIDGE A

CALIFORNIA, MD · 560 people · Groundwater ✓ No recent health violations

PERSIMMON HILLS A

CALIFORNIA, MD · 514 people · Groundwater ✓ No recent health violations

WILDERNESS RUN A

CALIFORNIA, MD · 511 people · Groundwater ✓ No recent health violations

PATUXENT PRESBYTERIAN CHURCH A

CALIFORNIA, MD · 464 people · Groundwater ✓ No recent health violations

BIRCH MANOR A

CALIFORNIA, MD · 272 people · Groundwater ✓ No recent health violations

GRANDVIEW HAVEN A

CALIFORNIA, MD · 269 people · Groundwater ✓ No recent health violations

PINEY POINT LANDINGS A

CALIFORNIA, MD · 239 people · Groundwater ✓ No recent health violations

VILLAGES AT LEONARDTOWN A

CALIFORNIA, MD · 239 people · Groundwater ✓ No recent health violations

FENWICK MANOR A

CALIFORNIA, MD · 234 people · Groundwater ✓ No recent health violations

LEONARDTOWN FARM A

CALIFORNIA, MD · 193 people · Groundwater ✓ No recent health violations

SOUTHGATE A

CALIFORNIA, MD · 188 people · Groundwater ✓ No recent health violations

KING & KENNEDY A

CALIFORNIA, MD · 169 people · Groundwater ✓ No recent health violations

OUR FATHERS HOUSE A

CALIFORNIA, MD · 165 people · Groundwater ✓ No recent health violations

HOLLAND FOREST A

CALIFORNIA, MD · 139 people · Groundwater ✓ No recent health violations

FOX MEADOW A

CALIFORNIA, MD · 128 people · Groundwater ✓ No recent health violations

SAINT ANDREWS PLAY SCHOOL & EPIS CHURCH A

CALIFORNIA, MD · 102 people · Groundwater ✓ No recent health violations

CREATIVE BEGINNINGS PRE-SCHOOL & DAYCARE A

CALIFORNIA, MD · 100 people · Groundwater ✓ No recent health violations

LOS GUAYABOS MEXICAN GRILL A

CALIFORNIA, MD · 68 people · Groundwater ✓ No recent health violations

MULBERRY SOUTH A

CALIFORNIA, MD · 65 people · Groundwater ✓ No recent health violations

HEARTS DESIRE A

CALIFORNIA, MD · 65 people · Groundwater ✓ No recent health violations

WILD GOOSE CREST SUBDIVISION A

CALIFORNIA, MD · 65 people · Groundwater ✓ No recent health violations

BOATEL CALIFORNIA A

CALIFORNIA, MD · 29 people · Groundwater ✓ No recent health violations

Looking for water quality data across the whole state? See our full Maryland tap water safety report covering Maryland’s EPA-regulated water systems.

California Drinking Water: Frequently Asked Questions

Is California, Maryland tap water safe to drink?

Based on the latest EPA data, California tap water meets all federal drinking water standards. All 34 tested systems have received a safety grade of A or B, with no active health-based violations.

How many water utilities serve California, Maryland?

34 community water systems serve California, Maryland, providing water to approximately 60,885 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.

Does California tap water have lead?

Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.

What contaminants have been found in California drinking water?

EPA violation records for California water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.

How do I find out which water company serves my address in California?

Enter your California ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).