Golden State Water Company - Lake Marie
EPA ID: CA4210022 · 545 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Golden State Water Company - Lake Marie (CA4210022): no EPA violations recorded in the last five years. Zero violations in five consecutive years of EPA monitoring - Golden State Water Company - Lake Marie has held a clean track record across every reporting cycle in that span, with no enforcement activity of any kind on file for the full service population of 545 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Golden State Water Company - Lake Marie Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Golden State Water Company - Lake Marie serves a community with a median household income of $84,178 and an estimated 41,710 residents across its service area. Approximately 73% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Golden State Water Company - Lake Marie'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.
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
Golden State Water Company - Lake Marie (EPA ID: CA4210022) is a community water system in California that serves approximately 545 people from groundwater sources.
This system serves ZIP code 93454 in Santa Maria.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by CA or modeled from parcel and building-footprint data.
- 93454 - Santa Maria
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Golden State Water Company - Lake Marie (CA4210022) on EPA.gov.
Frequently Asked Questions
Is Golden State Water Company - Lake Marie water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Golden State Water Company - Lake Marie in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Golden State Water Company - Lake Marie serve?
Golden State Water Company - Lake Marie serves approximately 545 people across 1 ZIP code in California.
Where does Golden State Water Company - Lake Marie get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Golden State Water Company - Lake Marie Water Report, CA. https://zipcheckup.com/water-system/ca4210022/
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