Commerce, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Commerce at a glance
Commerce serves about 2,645 people through 937 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Ottawa County, Oklahoma. EPA system ID: OK2005810; phone on file: 918-675-4373. They can tell you what your service line is made of and whether they pay to replace it.
Commerce's lead record
Against the period ending 2019 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Commerce is 1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
Where this result ranks
Of the 870 Oklahoma systems with a lead result, the median latest reading is 0.81 ppb; 6 are over 15 ppb right now and 66 have gone over at some point. Commerce's 1 ppb sits at the 54th percentile in Oklahoma and the 54th nationally (higher means more lead).
Other water systems in Ottawa County
14 other systems share Ottawa County; 1 of them has a higher latest lead result than Commerce. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Miami | 13,704 | 2.1 ppb |
| Afton Pwa | 1,428 | 0 (not detected) |
| Fairland Public Works Authority | 1,025 | 0 (not detected) |
| Quapaw | 906 | 0 (not detected) |
| Ottawa Co Rwd #5 | 750 | 0 (not detected) |
| Ottawa Co Rwd # 2 | 700 | 0 (not detected) |
| Ottawa Co Rwd # 4 | 652 | 0 (not detected) |
| Ottawa Co Rwd #6 | 560 | 0 (not detected) |
| Ottawa Co Rwd #7 | 500 | 0 (not detected) |
| Ottawa Co Rwd # 1 | 458 | 0 (not detected) |
Next steps for Commerce, OK
Test your own tap with a certified lab first-draw sample; Commerce, OK may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Commerce whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.