Historical Compliance Records CA

Averydale Mwc

EPA ID: CA1910023 ยท 1,023 people served ยท 1 ZIP code

ZipCheckup's reading of EPA records for Averydale Mwc (CA1910023): 1 violation on record since 2021. Averydale Mwc has 1 EPA violation on record, all marked resolved in the federal data; the utility serves 1,023 residents.

Data: EPA SDWIS

1,023
People Served
1
ZIP Code Served
1
Violations (since 2021)
Groundwater
Water Source
Below the reporting limit
Most recent lead 90th percentile on record (monitoring period ending 2027-12-31)
1
Contaminants Flagged
$336K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Averydale Mwc Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$65,989
Median Household Income
80,478
Population of ZIP Codes Served (Census)
49%
Disadvantaged Population
50th
Poverty Percentile
20th
Energy Burden Percentile
60%
Pre-1986 Housing

The ZIP codes associated with Averydale Mwc have a median household income of $65,989 and about 80,478 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 60% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 49% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Averydale Mwc's water is classified in EPA records as a groundwater source. 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
50th
Wastewater Discharge Proximity
70th
Superfund Site Proximity

Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.

Infrastructure Risk

40 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
30 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 57% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in California

0 violations
Indian Creek Csd
1,030 people
0 violations
Ccwd - West Point
1,043 people
0 violations
2 violations
1 violation

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Water Filtration
Water Filtration $300
Total Estimated Cost $300

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

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $500

Annual per household (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$2,500
10 years
$5,000
20 years
$10,000

Compare: Estimated remediation cost is $300 (one-time) vs. $5,000 in estimated inaction costs over 10 years.

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

Averydale Mwc (EPA ID: CA1910023) is a community water system in California that serves approximately 1,023 people from groundwater sources.

This system serves ZIP code 93535 in Lancaster.

Violation History

No current noncompliance in the accepted 2026Q2 snapshot. The 1 record in the 2021-2026 window are classified as resolved or archived, not current.

Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
October 1, 2024 Lead and Copper Rule Non-health-based Resolved

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Lead and Copper Rule Monitoring & Reporting 1 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
Below the reporting limit No 2027-12-31

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 $20โ€“$50 (DIY kit) ยท Professional inspection: $150โ€“$400

Find the Right Water Filter

Free tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.

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.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Averydale Mwc (CA1910023) on EPA.gov.

Frequently Asked Questions

Is Averydale Mwc water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Averydale Mwc; its 1 accepted 2021-2026 record are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Averydale Mwc serve?

Averydale Mwc serves approximately 1,023 people across 1 ZIP code in California.

Where does Averydale Mwc get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: No PFAS Reported Above Reporting Levels

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were reported above UCMR5 minimum reporting levels.

Samples collected
116

EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

Frequently Asked Questions

Should I use a water filter? ▼
Given 1 recorded violation, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does Averydale Mwc serve? ▼
Averydale Mwc serves approximately 1,023 people with drinking water across 1 ZIP code.
What is Averydale Mwc's water source? ▼
Averydale Mwc draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Averydale Mwc's water? ▼
The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero. This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with Averydale Mwc? ▼
The ZIP codes mapped to Averydale Mwc have a median household income of $65,989 (Census ZIP-code estimate). In CEJST data, 49% of census tracts in the counties mapped to this area are designated disadvantaged (average across mapped ZIP codes), which may indicate greater vulnerability to environmental health risks.
Where does Averydale Mwc get its water? ▼
Averydale Mwc's water is classified in EPA records as a groundwater source. 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.

How to cite this page

APA ZipCheckup. (n.d.). Averydale Mwc (CA): 1 EPA Violation. https://zipcheckup.com/water-system/ca1910023/
BibTeX
@misc{zipcheckup-water-system-ca1910023,
  author = {{ZipCheckup}},
  title  = {{Averydale Mwc (CA): 1 EPA Violation}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ca1910023/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

Averydale Mwc (EPA ID: CA1910023) - request the latest Consumer Confidence Report or ask about specific contaminants.

Home › Water Systems › California › Averydale Mwc

Get safety alerts for Averydale Mwc, California

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Violations found - check filter options Free tool - no phone call required.