Lost Creek Reservoir Mid Lake
Jack County, TexasView mapDirections
TCEQ publishes the water-quality measurements for Lost Creek Reservoir Mid Lake. Here is what has been measured.
- Limited data
Lost Creek Reservoir Mid Lake in Jack County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 4.3 ft visibility. Chlorophyll-a (algae): 9.6 µg/L.
Lost Creek Reservoir Mid Lake is a lake in Jack County, Texas.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-06-10. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lost Creek Reservoir Mid Lake is safe to swim in today is a call for the Texas Commission on Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lost Creek Reservoir Mid Lake
These are the measurements TCEQ publishes for Lost Creek Reservoir Mid Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.3 ft. Chlorophyll-a 9.6 µg/L. TSI 54.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 9.6µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 54 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Frequently asked questions about Lost Creek Reservoir Mid Lake
Where is Lost Creek Reservoir Mid Lake?
- Lost Creek Reservoir Mid Lake is a lake in Jack County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of Lost Creek Reservoir Mid Lake?
- Lost Creek Reservoir Mid Lake in Jack County, Texas has water-quality measurements published by TCEQ, shown here as reported. Water clarity: 4.3 ft visibility. Chlorophyll-a (algae): 9.6 µg/L.
Is Lost Creek Reservoir Mid Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
3 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN3 samples · 2025
Monitoring station identifiers (1)
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.