Tuttle, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 2.6 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.
Tuttle at a glance
Tuttle serves about 4,500 people through 2,485 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Grady County, Oklahoma. EPA system ID: OK2002608; phone on file: 405-381-5902. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 2.6 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Tuttle is 2.6 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.6 ppb |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2017 | 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. Tuttle's 2.6 ppb sits at the 81st percentile in Oklahoma and the 78th nationally (higher means more lead).
Neighbouring systems
15 other systems share Grady County; 3 of them have a higher latest lead result than Tuttle. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Chickasha Municipal Authority | 16,036 | 3.75 ppb |
| Grady Co Rwd #6 | 3,930 | 0 (not detected) |
| Grady Co Rwd #7 (Ninnekah) | 2,425 | 0 (not detected) |
| Minco | 1,632 | 0 (not detected) |
| Rush Springs | 1,278 | 1.26 ppb |
| Norge Water And Sewer Co., Inc | 890 | 0 (not detected) |
| Verden | 659 | 2.1 ppb |
| Alex | 635 | 0 (not detected) |
| Grady Co Rwd #2 | 455 | 1.1 ppb |
| Grady Co Rwd #1 | 300 | 0 (not detected) |
Next steps for Tuttle, OK
Test your own tap with a certified lab first-draw sample; Tuttle, 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 Tuttle 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. Systems that went over once often dip back under; here is what that means.