Water System Report CA

Garden Farms C.w.d.

EPA ID: CA4000507 · 440 people served · 2 ZIP codes

In every reporting cycle over the past five years, Garden Farms C.w.d. has come through without a single EPA violation — a consistent performance across the full service population of approximately 440 residents that reflects both well-maintained infrastructure and reliable operational oversight.

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

440
People Served
2
ZIP Codes Served
0
Violations (5yr)
Groundwater
Water Source
0
Contaminants Flagged

Service Area Map

Coverage area for Garden Farms C.w.d. Source: EPA SDWIS service area boundaries.

Service area boundary

Service Area Demographics

$89,916
Median Household Income
33,512
Service Area Population
6%
Disadvantaged Population
30th
Poverty Percentile
20th
Energy Burden Percentile
60%
Pre-1986 Housing

The Garden Farms C.w.d. serves a community with a median household income of $89,916 and an estimated 33,512 residents across its service area. Approximately 60% 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

Garden Farms C.w.d.'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.

Moderate Risk
Source Contamination Risk
50th
Wastewater Discharge Proximity
30th
Superfund Site Proximity

About 1% of homes in San Luis Obispo 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

42 yr
Avg Pipe Age
Copper
Pipe Material
26 yr
Est. Remaining Life
Stable
Decay Status
Installed 62% of expected lifespan used End of life

PFAS Detected in Service Area

PFAS ("forever chemicals") have been detected in water serving this system's area. 10 detections recorded. 4 exceed federal EPA limits (4 ppt for PFOA/PFOS). 3 exceed state limits.

State limits: PFOA: 0.0051 ppt, PFOS: 0.0065 ppt
Health concern: PFAS are linked to cancer, thyroid disease, immune suppression, and developmental effects. They do not break down naturally.
Recommended filter: Reverse osmosis (RO) or activated carbon filters certified for PFAS removal. Find the right filter →

Comparable Water Systems

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434 people
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Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance PFAS Treatment Radon Mitigation
Flood Insurance $600
PFAS Treatment $600
Radon Mitigation $400
Total Estimated Cost $1,600

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.

Cost of Inaction

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

PFAS Exposure — Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$165
10 years
$330
20 years
$660

Compare: Estimated remediation cost is $1,600 (one-time) vs. $330 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended for awareness, not financial advice.

System Overview

Garden Farms C.w.d. (EPA ID: CA4000507) is a community water system in California that serves approximately 440 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

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Garden Farms C.w.d. (CA4000507) on EPA.gov.

Frequently Asked Questions

Is Garden Farms C.w.d. water safe to drink?

Based on EPA records, Garden Farms C.w.d. has no recorded violations in the past 5 years — a positive indicator of water quality management.

How many people does Garden Farms C.w.d. serve?

Garden Farms C.w.d. serves approximately 440 people across 2 ZIP codes in California.

Where does Garden Farms C.w.d. 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
119
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: 440
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?
Garden Farms C.w.d. meets EPA standards, but a water filter can reduce trace contaminants below detectable levels for added peace of mind.
How many people does Garden Farms C.w.d. serve?
Garden Farms C.w.d. serves approximately 440 people with drinking water across 2 ZIP codes.
What is Garden Farms C.w.d.'s water source?
Garden Farms C.w.d. draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
What is the demographic profile of Garden Farms C.w.d.'s service area?
The Garden Farms C.w.d. service area has a median household income of $89,916. Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does Garden Farms C.w.d. get its water?
Garden Farms C.w.d.'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. Based on available data, the source contamination risk is moderate.
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