Lake Weir @ Ne Shore
Marion County, FloridaView mapDirections
This is the name Florida DEP records for this water. It can describe one sampling location rather than the water as a whole.
Florida DEP publishes the water-quality measurements for Lake Weir @ Ne Shore. Here is what has been measured.
- Impaired · Algal growth
- Limited data
Lake Weir @ Ne Shore in Marion County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 7.2 ft visibility. Phosphorus: 12 µg/L.
Lake Weir @ Ne Shore is a lake in Marion County, Florida.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2020-07-16. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Lake Weir @ Ne Shore is listed impaired under Clean Water Act §303(d) (IR 4A) for algal growth, mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Lake Weir @ Ne Shore is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Weir @ Ne Shore
These are the measurements Florida DEP publishes for Lake Weir @ Ne Shore, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 7.2 ft. Phosphorus 12 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 7.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 12µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading 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. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Fishing Lake Weir @ Ne Shore
EPA Impairment Status
Lake Weir @ Ne Shore is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2790A · Official waterbody report
Nearby Lakes in Marion County
Frequently asked questions about Lake Weir @ Ne Shore
Where is Lake Weir @ Ne Shore?
- Lake Weir @ Ne Shore is in Marion County, Florida. This is the name Florida DEP records for this water. It can describe one sampling location rather than the water as a whole. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Lake Weir @ Ne Shore?
- Lake Weir @ Ne Shore in Marion County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 7.2 ft visibility. Phosphorus: 12 µg/L.
Is Lake Weir @ Ne Shore safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Weir @ Ne Shore is listed impaired under Clean Water Act §303(d) (IR 4A) for algal growth, mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
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Where this data comes from
2 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples2 samples · 2020
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database