Moonstone Heights Municipal Water Authority
EPA ID: CA1200590 · 33 people served · 1 ZIP code
Moonstone Heights Municipal Water Authority carries zero EPA violations in five years — a spotless record for a utility serving 33 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Moonstone Heights Municipal Water Authority Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Moonstone Heights Municipal Water Authority serves a community with a median household income of $72,143 and an estimated 2,480 residents across its service area. Approximately 68% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Moonstone Heights Municipal Water Authority's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 2% of homes in Humboldt County, California rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in California
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Moonstone Heights Municipal Water Authority (EPA ID: CA1200590) is a community water system in California that serves approximately 33 people from groundwater sources.
This system serves ZIP code 95570 in Trinidad.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 95570 — Trinidad
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Moonstone Heights Municipal Water Authority (CA1200590) on EPA.gov.
Frequently Asked Questions
Is Moonstone Heights Municipal Water Authority water safe to drink?
Based on EPA records, Moonstone Heights Municipal Water Authority has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Moonstone Heights Municipal Water Authority serve?
Moonstone Heights Municipal Water Authority serves approximately 33 people across 1 ZIP code in California.
Where does Moonstone Heights Municipal Water Authority get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.