Ketchum Pwa Delaware Co System, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 2.3 ppb (monitoring period 2022-2024). 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.
Ketchum Pwa Delaware Co System at a glance
Ketchum Pwa Delaware Co System serves about 1,805 people through 1,233 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 surface water, in Delaware County, Oklahoma. EPA system ID: OK1221638; phone on file: 918-782-2123. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Ketchum Pwa Delaware Co System's lead record
That is up 2.3 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Ketchum Pwa Delaware Co System is 2.3 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2.3 ppb |
| 2021 | 0 (not detected) |
| 2018 | 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. Ketchum Pwa Delaware Co System's 2.3 ppb sits at the 78th percentile in Oklahoma and the 76th nationally (higher means more lead).
Neighbouring systems
25 other systems share Delaware County; 5 of them have a higher latest lead result than Ketchum Pwa Delaware Co System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Grove Municipal Services Auth. | 7,311 | 9.3 ppb |
| Grand Lake Pwa | 2,800 | 3.1 ppb |
| Jay | 2,482 | 0 (not detected) |
| South Delaware Co Regional Water Auth. | 1,500 | 1.8 ppb |
| Delaware Co Rwd #10 | 1,295 | 1.2 ppb |
| West Siloam Springs | 877 | 1.4 ppb |
| Colcord Pwa | 819 | 0 (not detected) |
| Kansas Public Works Authority | 802 | 0 (not detected) |
| Delaware Co Rwd # 12 | 785 | 0 (not detected) |
| Delaware Co Rwsg&Swm District 11 | 750 | 2.5 ppb |
Next steps for Ketchum, OK
Test your own tap with a certified lab first-draw sample; Ketchum, 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 Ketchum Pwa Delaware Co System 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. What a 90th-percentile result does and does not tell you: how to read a lead result. The action level is dropping - the 10 ppb rule from 2027.