WATER QUALITY CA

Water Quality in North Hills, CA: No Violations — Grade C

Grade C · Score 58/100 · 1 water system · Updated 2026-05-03

North Hills's water has moderate compliance issues. Residents in affected areas should consider filtration.

Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03

Not one violation appears in CA's EPA file for North Hills — 1 monitored system, all clear.

Water Grade

Total Violations

Water Systems

ZIPs with Violations

ZIP Codes Monitored

Water Quality by ZIP Code in North Hills

Water quality varies across North Hills's 2 ZIP codes. Check your specific ZIP for detailed contaminant data.

ZIP Code	Grade	Score	Violations	Health
91393	D	53	0	0	View report →
91343	C	63	0	0	View report →

Water Quality Overview

North Hills, California receives a water quality grade of C with an overall score of 58 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).

No EPA violations have been recorded for the 1 water system serving North Hills. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.

What Grade C Means

A grade of C indicates moderate compliance issues. North Hills's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.

Lead Levels

Lead testing data for North Hills is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.

With 77% of homes built before 1986, North Hills has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.

Radon Risk

North Hills is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.

Water Systems Serving North Hills

North Hills is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 23,946 people across 2 ZIP codes.

Each water system is identified by a Public Water System ID (PWSID) and is required to:

Test for over 90 regulated contaminants on a regular schedule
Report results to the EPA and state regulators
Issue an annual Consumer Confidence Report (CCR) to all customers
Take corrective action when violations occur

How to Check Your Water in North Hills

Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts

North Hills vs. Nearby California Cities

How North Hills's water quality compares to similar cities in California:

City	Grade	Systems	Population
North Hills	C	1	23,946
Granada Hills	D	1	23,946
Mission Hills	C	1	23,946
Pacoima	C	1	23,946

Common Questions About North Hills Water

These are the most common questions residents search for about water quality in North Hills, California:

Is North Hills water hard or soft? Water hardness varies by source. North Hills's 1 water system uses a single source. Check your ZIP code report for specific hardness data.

Can I drink North Hills tap water? North Hills's water receives a grade of C (58/100). No health-based violations have been recorded, but home testing is always recommended.

What is the best water filter for North Hills? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.

North Hills vs. California Average

Understanding how North Hills compares to the broader California average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.

To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within North Hills.

ZIP Codes in North Hills

North Hills spans 2 ZIP codes. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.

Data Sources

Water quality: EPA Safe Drinking Water Information System (SDWIS)
Lead/copper: EPA Lead and Copper Rule sampling data
Radon: EPA Map of Radon Zones
Enforcement: EPA ECHO database
Filter recommendations: NSF/ANSI certified products

Updated daily.

Frequently Asked Questions

Is North Hills tap water safe to drink?

North Hills's water receives a grade of C (58/100). Some areas have recorded violations — residents in affected ZIP codes may want to consider water testing.

What contaminants are found in North Hills water?

North Hills water systems have zero recorded violations. While this is excellent, the EPA recommends annual testing as contaminants can enter your water through home plumbing.

How many water violations does North Hills have?

North Hills has 0 total EPA violations across 1 water system. 0 of 2 ZIP codes have at least one violation.

How many water systems serve North Hills?

North Hills is served by 1 public water system supplying drinking water across 2 ZIP codes. Water quality can vary between systems — check your specific ZIP code for localized data.

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