Lake Jean Neustadt
Carter County, Oklahoma462 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Lake Jean Neustadt. Here is what has been measured.
- Limited data
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Answers come straight from the public measurements and survey records on this page.
Lake Jean Neustadt in Carter County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2 ft visibility. Surface area: 462 acres.
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Lake Jean Neustadt is a 462-acre lake in Carter County, Oklahoma. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2023-10-23. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Jean Neustadt is safe to swim in today is a call for the Oklahoma Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Jean Neustadt
These are the measurements Oklahoma DEQ publishes for Lake Jean Neustadt, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2 ft of visibility. TSI 67.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 67 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 462 acres |
No bathymetric survey has been published for Lake Jean Neustadt, so its depth is not documented here.
Fishing Lake Jean Neustadt
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +8.723 m/yr | 3 |
| Phosphorus | ↓ Declining | +2.38 µg/L/yr | 2 |
| Chlorophyll-a | ↑ Improving | -3.44 µg/L/yr | 2 |
Reservoir Info (USACE NID)
Lake Jean Neustadt is a man-made reservoir impounded by the SCS-Caddo Creek Site-13 (completed 1969), built primarily for water supply on the Philips Creek; earth-type dam, 59 ft tall and 5,550 ft long.
- Surface area
- 462 ac
- Normal storage
- 4,542 ac-ft
- Max storage
- 11,170 ac-ft
- Drainage area
- 17.38 sq mi
- Hazard class
- High
- Owner
- ARBUCKLE CONSERVATION DISTRICT
Source: USACE National Inventory of Dams, NID ID OK00433 · Operator website · Matched by proximity (0.96 km)
Nearby Lakes in Carter County
Frequently asked questions about Lake Jean Neustadt
Where is Lake Jean Neustadt?
- Lake Jean Neustadt is a lake in Carter County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Lake Jean Neustadt?
- Lake Jean Neustadt in Carter County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2 ft visibility. Surface area: 462 acres.
Is Lake Jean Neustadt safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lake Jean Neustadt across LakeQuality
2 documented falls within 10 mi, nearest Turner Falls
Species activity outlook by water temperature and season
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Oklahoma's cleanest lakes, ranked on agency measurements
Planning a trip around Chickasaw?
Lake Jean Neustadt is about 15 miles from Chickasaw National Recreation Area. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Chickasaw →More lakes in Oklahoma
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Eutrophic Lakes in Oklahoma
Where this data comes from
26 measurements from 3 monitoring stations, 2016–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX26 samples · 2016–2023
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
Monitoring station identifiers (3)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.