Water System Report CA

Windflower Point Mutual Water Company

EPA ID: CA1700657 · 25 people served · 2 ZIP codes

Water monitoring history at Windflower Point Mutual Water Company shows a clean slate — EPA tracking over the past five years turned up no violations, and 25 residents continue to receive fully compliant service.

Data: EPA SDWIS Last verified: 2026-04-02

25
People Served
2
ZIP Codes Served
0
Violations (5yr)
Groundwater
Water Source
0
Contaminants Flagged

Service Area Map

Coverage area for Windflower Point Mutual Water Company Source: EPA SDWIS service area boundaries.

Service area boundary

Service Area Demographics

$135,966
Median Household Income
65,036
Service Area Population
15%
Disadvantaged Population
20th
Poverty Percentile
10th
Energy Burden Percentile
79%
Pre-1986 Housing

The Windflower Point Mutual Water Company serves a community with a median household income of $135,966 and an estimated 65,036 residents across its service area. Approximately 79% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

💧 Where Does Your Water Come From?

Groundwater

Windflower Point Mutual Water Company'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.

Low Risk
Source Contamination Risk
40th
Wastewater Discharge Proximity
60th
Superfund Site Proximity

About 1% of homes in San Mateo County, California rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.

Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.

Infrastructure Risk

53 yr
Avg Pipe Age
Galvanized Steel or Copper
Pipe Material
13 yr
Est. Remaining Life
Stable
Decay Status
Installed 80% of expected lifespan used End of life

Comparable Water Systems

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Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance
Flood Insurance $1,800
Total Estimated Cost $1,800

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

Windflower Point Mutual Water Company (EPA ID: CA1700657) is a community water system in California that serves approximately 25 people from groundwater sources.

This system provides water to 2 ZIP codes across 1 community.

Violation History

No violations recorded — This water system has no recorded EPA violations in the past 5 years.

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 Filter

Free tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.

ZIP Codes Served

  • 94080 — South San Francisco
  • 94083 — South San Francisco

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Windflower Point Mutual Water Company (CA1700657) on EPA.gov.

Frequently Asked Questions

Is Windflower Point Mutual Water Company water safe to drink?

Based on EPA records, Windflower Point Mutual Water Company has no recorded violations in the past 5 years — a positive indicator of water quality management.

How many people does Windflower Point Mutual Water Company serve?

Windflower Point Mutual Water Company serves approximately 25 people across 2 ZIP codes in California.

Where does Windflower Point Mutual Water Company 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:

0
Confirmed Lead
0
Galvanized — Replacement Required
0
Unknown Material
39
Confirmed Non-Lead

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.

Federal Regulatory Status · 2026Q1
LCRR inventory submission: Reported all required service line types
Latest tap sample on 2022-01-01 did not exceed the federal lead action level.
Population served: 25
Reported to California

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.

Learn about lead in drinking water →

Frequently Asked Questions

Should I use a water filter?
Windflower Point Mutual Water Company meets EPA standards, but a water filter can reduce trace contaminants below detectable levels for added peace of mind.
How many people does Windflower Point Mutual Water Company serve?
Windflower Point Mutual Water Company serves approximately 25 people with drinking water across 2 ZIP codes.
What is Windflower Point Mutual Water Company's water source?
Windflower Point Mutual Water Company draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
What is the demographic profile of Windflower Point Mutual Water Company's service area?
The Windflower Point Mutual Water Company service area has a median household income of $135,966. Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does Windflower Point Mutual Water Company get its water?
Windflower Point Mutual Water Company'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.
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