Alderpoint County Water
EPA ID: CA1200501 · 185 people served · 3 ZIP codes
Federal water data for Alderpoint County Water logs 1 historical violation — all addressed and cleared, leaving the utility in current compliance for 185 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Alderpoint County Water Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Alderpoint County Water serves a community with a median household income of $21,007 and an estimated 817 residents across its service area. Approximately 57% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 50% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Alderpoint County Water's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
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
Detected Contaminants
How Alderpoint County Water compares to EPA limits
What This Means For You
Stage 1 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Comparable Water Systems
Similar-sized systems in California
System Overview
Alderpoint County Water (EPA ID: CA1200501) is a community water system in California that serves approximately 185 people from surface water sources.
This system provides water to 3 ZIP codes across 3 communities.
Average Home Safety Score: B (77/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 95511 | 0.00255 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Alderpoint County Water (CA1200501) on EPA.gov.
Frequently Asked Questions
Is Alderpoint County Water water safe to drink?
Alderpoint County Water has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Alderpoint County Water serve?
Alderpoint County Water serves approximately 185 people across 3 ZIP codes in California.
Where does Alderpoint County Water get its water?
The primary water source is surface water.
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.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Alderpoint County Water (EPA ID: CA1200501) — request the latest Consumer Confidence Report or ask about specific contaminants.