Oklahoma water records

Oklahoma Water Quality Records

Start here to explore public water records for Oklahoma. Find available city guides, public water system records, annual reports, and official sources. This page does not include every system or tell you which provider serves a specific address.Find available Oklahoma city guides, water system records, reports, and official sources. This page does not include every system or tell you which provider serves a specific address.

Records currently available

Oklahoma record snapshot

These counts describe reviewed records available on Water Quality Lookup. They are not a count of every provider, city, or county in Oklahoma.

Available systems3

Reviewed profiles or limited identity records.

Available cities3

Local entry points, not service-area boundaries.

Profile coverage reviewedAug 2, 2026

Guide sources reviewed September 13, 2026.

Cities

Oklahoma city entry points currently available

These Oklahoma city pages are local starting points. City boundaries and water service areas may not match, and more than one provider may serve a city.

Water systems

Oklahoma public water systems currently available

These previews link to reviewed system profiles with identifiers, report-year context, sources, and limitations.

OKLAHOMA CITY

PWSID OK1020902 · Oklahoma City · Latest reviewed report 2025

View system profile

Report context

Reservoirs, wells, and purchased water in three Oklahoma reports

The existing system profiles retain their August 2, 2026 review date. This state guide’s September 13 review adds navigation and source context without changing the reports’ monitoring periods.

Oklahoma City · OK1020902

Reservoir water and two treatment plants

Oklahoma City’s reviewed 2025 utility report describes reservoir surface water treated at the Hefner and Draper plants. This explains the utility report’s source and treatment context; it does not identify the water reaching an individual home.

Read Oklahoma City’s report overview →

Lawton · OK1011303

Lake Lawtonka surface water

Lawton’s report is titled 2026 and covers calendar year 2025. Its source table names LAWTONKA LAKE and classifies the supply as surface water. Check the covered period and individual sample dates when reading the results.

Read Lawton’s report overview →

Yukon · OK2000910

Groundwater wells and an Oklahoma City connection

Yukon’s 2026 report covers 2025 and lists 15 groundwater wells alongside a consecutive connection that purchases water from Oklahoma City. Its table identifies Yukon as the buyer and Oklahoma City as the seller. It does not provide a current source percentage or an address-level supply assignment.

Read Yukon’s report overview →

More on this site

Continue your Oklahoma lookup

Use the system directory, a plain-language guide, or the methodology page for the next step.

Statewide context

Keep the supplier, seller, and reporting period separate

Purchased water

Yukon and Oklahoma City remain separate systems

Yukon is OK2000910 and Oklahoma City is OK1020902. A purchased-water connection explains their supply relationship, but each system has its own report and monitoring context. Confirm the utility on your bill before choosing a report.

Report years

A 2026 title can describe 2025 monitoring

Lawton and Yukon use 2026 in their report titles while covering calendar year 2025. Oklahoma City’s report uses 2025 in its title. Compare the covered period and sample dates before comparing results across the three documents.

Private-well context

Central Oklahoma has a dedicated aquifer guide

DEQ’s October 2024 guide addresses arsenic, chromium, selenium, and uranium in private wells drawing from the Garber-Wellington, also called the Central Oklahoma Aquifer. Its regional map helps frame a testing question; it cannot establish an individual well’s result or the utility serving an address.

Official lookup

Find the exact Oklahoma system in Drinking Water Watch

Public records

Start with the full system identifier

Oklahoma DEQ’s Compliance Monitoring page links a public Drinking Water Watch search. The form provides Water System No., system name, county, system-type, and source-type filters. A reviewed exact-ID search returned OKLAHOMA CITY, OK1020902. Its detail page identifies Oklahoma as the principal county and SW as the source code. EPA’s separate exact-ID record corroborates the identifier.

  1. Confirm the provider named on your bill or annual report.
  2. Enter its full PWSID in Water System No.; Oklahoma City’s identifier is OK1020902.
  3. Compare the returned system name and full identifier before opening the record.
  4. Use an explicit date range when reviewing samples, and ask the provider about an unclear match.

Open Oklahoma Drinking Water Watch →

Check Oklahoma City’s EPA identity record →

Sample dates

Check the two-year search default

The public form says sample searches cover the last two years unless you provide a specific date range. It separates microbial samples, lead-and-copper summaries, and chemical/radiological records. The selected category and dates determine what you see.

A result from an annual report may fall outside that default window. Use its sample date and measure label when looking for the corresponding record.

Find DEQ’s monitoring resources →

Official guidance

Find reports, inventory help, and well-testing instructions

Annual reports

Choose the provider’s report and covered year

DEQ explains that a consumer confidence report summarizes the previous calendar year’s monitoring and source information. The three official reports linked here concern distinct systems, including Yukon’s purchased-water relationship.

If a report is unavailable or difficult to use, ask your supplier for the correct system’s report, a paper or accessible copy, or language assistance.

Find Oklahoma City’s official reports →

Find Lawton’s official reports →

Open Yukon’s official report →

Service-line materials

Ask about both sides of the connection

DEQ’s service-line inventory guidance distinguishes the system side from the customer side. Lawton’s and Yukon’s reports direct customers to the utility for inventory access. Ask what material is recorded for each portion of your connection and how unknown information can be checked.

A pipe-material inventory and a household water sample answer different questions.

Read Oklahoma’s service-line inventory guidance →

Current instructions

Use your supplier’s latest notice

For an interruption or possible drinking-water notice, check the utility’s current message for the affected area and follow its instructions. Ask the supplier how to receive future alerts. DEQ’s Water Quality contacts provide a state route for unresolved record or program questions.

Contact Oklahoma DEQ Water Quality →

Private-well testing

Choose the analyses before collecting water

DEQ’s July 2022 private-well guide explains that its routine chemical panel does not include every primary and secondary drinking-water standard parameter. A standard panel is therefore not a test for every possible concern.

The State Environmental Laboratory’s collection page provides separate private-customer instructions for bacteria and nitrate/nitrite sampling. Confirm the requested tests, containers, handling, and current charges with the laboratory before collecting a sample.

Read Oklahoma’s private-well analysis guide →

Find DEQ’s sample-collection instructions →

Aquifer testing

Ask about a test suited to your well

The Garber-Wellington/Central Oklahoma Aquifer guide provides a laboratory contact pathway for the four elements it discusses. Tell the laboratory which well you use and what you want to learn. Confirm current test options and prices rather than relying on an older fee offer.

Read DEQ’s Central Oklahoma Aquifer guide →

Common questions

Using Oklahoma water information

Purchased water

Should a Yukon customer use only Oklahoma City’s report?

No. Yukon’s report describes its own wells and the purchased-water connection, with buyer and seller identified separately. Confirm your supplier and read the report for that system; a seller’s result does not replace every part of the retail system’s monitoring.

Search windows

Why might an annual-report result be missing from the first search?

Oklahoma Drinking Water Watch defaults to the last two years for sample searches unless you enter dates. Match the report’s sample date, category, and system ID before interpreting what appears in a search.

Testing scope

Does a routine private-well panel test for everything?

No. DEQ’s private-well guide explicitly limits the routine chemical panel’s scope. Discuss your concern and well location with the laboratory so you can choose appropriate analyses and collection instructions.

Official sources

Official sources for Oklahoma

Use Oklahoma Department of Environmental Quality and the official sources below to verify system identity, record dates, and current notices before relying on a summary.

Statewide sources

Oklahoma Department of Environmental Quality

PWSID OK1020902 · Sources for this system

Oklahoma City Water Utilities Trust, City of Oklahoma City

PWSID OK1011303 · Sources for this system

City of Lawton Public Utilities

PWSID OK2000910 · Sources for this system

City of Yukon Water Management

Opens in a new tab