TapWaterMap
Shows EPA records on US tap water systems, contaminants and violations, city by city.
Images: tapwatermap.com
What TapWaterMap can do in ChatGPT
EPA tap water records for US cities.
Water Systems
See which public water systems serve a city.
Violations On Record
Dated EPA violations, marked health-based or not.
Contaminant Lookup
Learn what a listed contaminant is.
City Comparison
Put two cities' water records side by side.
EPA Sourced
Every answer is based on SDWIS records.
You stay in control
You approve access, and you can disconnect TapWaterMap at any time.
Apps 1
What TapWaterMap does in ChatGPT
The TapWaterMap plugin looks up tap water records for US cities inside ChatGPT. It uses the EPA's Safe Drinking Water Information System, known as SDWIS, and covers about 19,000 cities across all 50 states and Washington, DC, so most US towns can be looked up.
For a city you can see which water systems serve it and which contaminants and violations are on record, with dates and a note on whether the EPA classes each one as health-based. You can also put two cities side by side or ask what a particular contaminant is.
The plugin reports what the EPA recorded, in a calm tone, and ties each answer to that public source. It deliberately does not say whether water is safe to drink, so for that judgment you would contact your local water utility or health department.
Who it is for
- Renters and home buyers checking a city
- Parents curious about local water
- Journalists and researchers
How to add TapWaterMap to ChatGPT
- Open the TapWaterMap listing in ChatGPT ↗.
- Click Install plugin.
- Sign in to your TapWaterMap account when asked and approve the access it requests.
- Start a chat and ask for what you need, mentioning TapWaterMap if ChatGPT does not pick it up.
- To stop, disconnect TapWaterMap under apps in your ChatGPT settings.
Questions about TapWaterMap
What is the TapWaterMap ChatGPT plugin?
The TapWaterMap plugin looks up tap water records for US cities inside ChatGPT. It uses the EPA's Safe Drinking Water Information System, known as SDWIS, and covers about 19,000 cities across all 50 states and Washington, DC, so most US towns can be looked up. It is listed in ChatGPT's plugin marketplace under Education & Research.
What can I ask TapWaterMap to do in ChatGPT?
For example: "What water systems serve Denver?", "Show violations on record for my city's water", "Compare tap water records for Phoenix and Tucson".
Who makes the TapWaterMap plugin for ChatGPT?
The ChatGPT listing names Squidcode LLC as the developer. The version listed on 8 October 2026 was 1.0.0.
How do I add TapWaterMap to ChatGPT?
Open the TapWaterMap listing in ChatGPT, click Install plugin, sign in to your TapWaterMap account and approve the access it asks for. Then ask for what you need in a chat, mentioning TapWaterMap if ChatGPT does not pick it up.
Can TapWaterMap change things in my account, or only read?
It reads public EPA SDWIS records and shows them in the chat. It does not give a safety verdict.
Who is the TapWaterMap plugin for?
Renters and home buyers checking a city, parents curious about local water and journalists and researchers.
Where does TapWaterMap's data come from?
From the EPA's Safe Drinking Water Information System (SDWIS).
Will it tell me if my water is safe?
No. It reports what the EPA recorded and never gives a safety verdict.
How many places does it cover?
About 19,000 US cities across all 50 states and DC.
Does TapWaterMap see my ChatGPT chats?
When TapWaterMap is connected, ChatGPT may share the parts of your chats and memories that matter for a request with TapWaterMap. What TapWaterMap does with that data falls under its own terms and privacy policy. ChatGPT keeps your training-data settings, and you can disconnect at any time.
How do I disconnect TapWaterMap from ChatGPT?
Open your ChatGPT settings, go to apps, and disconnect TapWaterMap. You can reconnect later from the listing.
What are alternatives to TapWaterMap in ChatGPT?
Similar plugins in the ChatGPT marketplace include EduOpus, Clasora Tutor Finder and edifyedu.in. Each has its own page in this directory.
Privacy and your data
When TapWaterMap is connected, ChatGPT may share the parts of your chats and memories that matter for a request with TapWaterMap. What TapWaterMap then does with that data falls under its own terms and privacy policy, not only OpenAI's. ChatGPT keeps your training-data settings for data that comes from connected apps, and you can disconnect at any time.
TapWaterMap privacy policy ↗TapWaterMap terms ↗OpenAI: apps in ChatGPT ↗