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Estero Municipal Improvement District

Drinking water quality, contact, and Consumer Confidence Report

Serving 2 cities in CA ยท PWSID CA4110021

Estero Municipal Improvement District serves 36,556 people. See EPA records and contact info below.

Monitor
4 contaminants with an EPA health goal detected in some samples (no level on file)
People served
36,556
Last EPA sample
2025-06-30
PFAS
Not detected
Health-based violations since 2020
0

Data sources: EPA SDWIS, Estero Municipal Improvement District's published Consumer Confidence Report, and compliance monitoring reported to EPA by CA State Water Resources Control Board, Div. of Drinking Water.

This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.

37K
People Served
2
Cities
1
Water Sources
0
Health-based violations since 2020

Help Paying Your Estero Municipal Improvement District Water Bill

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Estero Municipal Improvement District Service Area

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Service Area

This map shows the approximate service area for Estero Municipal Improvement District. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

Estero Municipal Improvement District Water Quality Grade

Not graded: Monitor

Estero Municipal Improvement District reads Monitor. A letter grade is given only beside a Safe verdict.

0
Above Health Guidelines
0
Health-based violations since 2020

Is Estero Municipal Improvement District Water Safe to Drink?

Estero Municipal Improvement District has reported 4 contaminants with an EPA health goal detected in some samples (no level on file) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.

This utility serves 36,556 people across 2 cities in CA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.

Get your water independently tested in California โ†’How does California water quality rank nationally? โ†’

Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California

Fluoride in Estero Municipal Improvement District Water

  • Estero Municipal Improvement District

    PWSID CA4110021

    No fluoride level in our data for Estero Municipal Improvement District. Your utility's annual water quality report (CCR) lists it.

Check fluoride levels by ZIP code

Estero Municipal Improvement District Service Area

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Estero Municipal Improvement District Contact & Information

Phone

Mailing Address

100 Lincoln Center Drive Foster City, CA 94404

B2B Contact Data

B2B Contact Data Available

Contacts for Estero Municipal Improvement District

Updated Jan 2026
Sample Preview (masked)
NameTitlePhoneEmail
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Mโ–ˆโ–ˆโ–ˆโ–ˆ Jโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆโ–ˆUtility Director(555) โ–ˆโ–ˆโ–ˆ-โ–ˆโ–ˆโ–ˆโ–ˆmโ–ˆโ–ˆโ–ˆโ–ˆ@waterโ–ˆโ–ˆโ–ˆโ–ˆ.org
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Water Sources & Treatment

Water Sources

Surface water purchased

Treatment Methods

conventionalfiltrationno treatment

Disinfectant Used

chloramines, hypochlorite, no disinfectant, uv light

Estero Municipal Improvement District Consumer Confidence Report

A Consumer Confidence Report (CCR) is the EPA-mandated annual water-quality report every community water system must publish by July 1 each year (Safe Drinking Water Act ยง1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.

A current CCR for Estero Municipal Improvement District has not been published or validated on TapWaterData yet.

Publish your 2027 CCR

Are you the water operator here? Publish your official 2027-compliant CCR on this page โ€” residents already find it here.

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Residents: contact the utility directly using the phone number above, or check the EPAโ€™s national CCR portal. Reports are typically distributed by mail or posted on the utilityโ€™s official website.

Estero Municipal Improvement District Annual Water Quality Reports

Find Estero Municipal Improvement Districtโ€™s report

We donโ€™t have a link we can confirm belongs to this system, and weโ€™d rather show none than the wrong utilityโ€™s. CA State Water Resources Control Board, Div. of Drinking Water publishes drinking-water reports for systems in this state.

Visit CA State Water Resources Control Board, Div. of Drinking Water

What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.

EPA Health-Based Violations Since 2020

Estero Municipal Improvement District has no health-based EPA violation since 2020 (EPA data as of Q2 2026).

EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).

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Frequently Asked Questions about Estero Municipal Improvement District

Is Estero Municipal Improvement District water safe to drink?

Estero Municipal Improvement District has reported 4 contaminants with an EPA health goal detected in some samples (no level on file) in at least one city served. We recommend reviewing individual city reports for specific water quality details.

Does Estero Municipal Improvement District have PFAS in its water?

Estero Municipal Improvement District has PFAS monitoring data on record and no PFAS compounds are currently above EPA health-based guidelines. EPA finalized new PFAS drinking-water rules in 2024 requiring ongoing monitoring through 2029.

How do I pay my Estero Municipal Improvement District water bill?

Contact Estero Municipal Improvement District at 650-286-3546 to pay your bill or set up online payments.

How many people does Estero Municipal Improvement District serve?

Estero Municipal Improvement District serves 36,556 people across 2 cities in CA.

What cities does Estero Municipal Improvement District serve?

Estero Municipal Improvement District provides water service to: Foster City, CA; San Mateo, CA.

Does Estero Municipal Improvement District have any EPA violations?

No. Estero Municipal Improvement District has no health-based EPA violation since 2020 (EPA data as of Q2 2026).

What is Estero Municipal Improvement District's phone number?

You can contact Estero Municipal Improvement District at 650-286-3546. Their mailing address is: 100 Lincoln Center Drive Foster City, CA 94404.

Where can I find Estero Municipal Improvement District's Consumer Confidence Report?

Community water systems must publish an annual CCR. If you're looking for Estero Municipal Improvement District's CCR, contact them at 650-286-3546 or check back here โ€” we update monthly. The 2027 revised CCR Rule introduces new direct-URL distribution requirements.

Similar water utilities in California

How we built this page

Water-quality and contact data on this page comes from public federal and state records. We update each utility's record whenever its underlying source publishes new data โ€” typically within days of an EPA SDWIS refresh.

Spotted a data issue? Use the Spotted something off? link at the bottom of the page โ€” corrections feed back into the next data refresh. Learn more about TapWaterData.

Are you Estero Municipal Improvement District? Publish your 2027 CCR

TapWaterData runs a free CCR publishing service for community water systems. Claim this listing to publish your Consumer Confidence Report here โ€” it inherits this page's search authority and reaches every customer who Googles Estero Municipal Improvement District.

  • EPA-compliant distribution. Satisfies the 2027 Revised CCR Rule direct-URL requirement with an auditable archive.
  • Publish once a year. Agent-assisted workflow; no login setup for small systems.
  • Inherits this page's reach. Your published CCR appears directly on the page customers already find on Google.
Claim Estero Municipal Improvement District

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Residents keep our data honest.

This form corrects our data; it does not reach Estero Municipal Improvement District. For a problem with your water now (discolored water, no water, low pressure, a leak), contact Estero Municipal Improvement District directly.

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