Get Public Water System
epaenvirofacts/water-system
Returns one public drinking-water system from EPA's Safe Drinking Water Information System (SDWIS) in Envirofacts by its PWSID: name, mailing city and state, primacy agency, type, status, owner type, primary source, population served, connections, whether it is a wholesaler or serves a school or day-care, and the deactivation date; or null when the id is unknown. Contact persons, phones, e-mail addresses and street addresses are not returned. Source: U.S. Environmental Protection Agency (EPA) Envirofacts, https://www.epa.gov/enviro, U.S. government data in the public domain, reduced to the fields listed (contact persons, phone numbers, e-mail addresses and mailing addresses are not returned) and served by Eden Engine; not an official EPA product.
Price
$0.0026 per call
You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.
Data source
Source: U.S. Environmental Protection Agency (EPA) Envirofacts, https://www.epa.gov/enviro, U.S. government data in the public domain, reduced to the fields listed (contact persons, phone numbers, e-mail addresses and mailing addresses are not returned) and served by Eden Engine; not an official EPA product.
Use it
Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.
Connect once and your AI can find and run this tool, and any other it needs.
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "epaenvirofacts/water-system" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "epaenvirofacts/water-system" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "epaenvirofacts/water-system", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "epaenvirofacts/water-system", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.
Pricing
Every charge this tool can incur.
| Charge | Price |
|---|---|
Per call | $0.0026 |
- Updated
- Oct 27, 2026
Input and output schemas
Input schema
{
"type": "object",
"required": [
"pwsid"
],
"properties": {
"pwsid": {
"type": "string",
"pattern": "^[A-Z]{2}[0-9]{7}$",
"description": "Public water system id: two capital letters (the primacy agency) and seven digits, for example DE0000002."
}
},
"additionalProperties": false
}Output schema
{
"type": "object",
"required": [
"water_system"
],
"properties": {
"water_system": {
"type": [
"object",
"null"
],
"required": [
"pwsid"
],
"properties": {
"name": {
"type": [
"string",
"null"
],
"description": "Water system name."
},
"pwsid": {
"type": "string",
"description": "Public water system identifier: two-letter primacy agency code plus seven digits, for example DE0000004."
},
"epa_region": {
"type": [
"integer",
"null"
],
"description": "EPA region number, 1 to 10."
},
"owner_type": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Owner code."
},
"label": {
"type": [
"string",
"null"
],
"description": "Plain-language owner type."
}
},
"description": "Federal, local, state, Native American, private or public/private ownership; null when EPA holds none.",
"additionalProperties": true
},
"system_type": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "CWS, NTNCWS or TNCWS."
},
"label": {
"type": [
"string",
"null"
],
"description": "Plain-language type."
}
},
"description": "Type: community, non-transient non-community or transient non-community water system.",
"additionalProperties": true
},
"mailing_city": {
"type": [
"string",
"null"
],
"description": "City in the system's mailing address."
},
"is_wholesaler": {
"type": [
"boolean",
"null"
],
"description": "True when the system sells water to other systems."
},
"mailing_state": {
"type": [
"string",
"null"
],
"description": "Two-letter code of the state in the system's mailing address. It can differ from the state the system serves; primacy_agency is the regulating state."
},
"primacy_agency": {
"type": [
"string",
"null"
],
"description": "Code of the agency that regulates the system, usually the state."
},
"primary_source": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Source code."
},
"label": {
"type": [
"string",
"null"
],
"description": "Plain-language source."
}
},
"description": "Ground water, surface water or purchased water; null when EPA holds none.",
"additionalProperties": true
},
"activity_status": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "A, I, N or M."
},
"label": {
"type": [
"string",
"null"
],
"description": "Plain-language status."
}
},
"description": "Whether the system is active, inactive, or changed from public to non-public.",
"additionalProperties": true
},
"deactivation_date": {
"type": [
"string",
"null"
],
"description": "Date the system was deactivated, YYYY-MM-DD; null while it is active."
},
"population_served": {
"type": [
"integer",
"null"
],
"description": "People served by the system (a count)."
},
"service_connections": {
"type": [
"integer",
"null"
],
"description": "Number of service connections."
},
"is_school_or_daycare": {
"type": [
"boolean",
"null"
],
"description": "True when the system serves a school or day-care."
}
},
"description": "The system, or null when the id is unknown.",
"additionalProperties": true
}
},
"additionalProperties": true
}