Mere Mere (Mid Mere
Mere Mere (Mid Mere in Gtr Mancs Mersey and Ches, England has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.9 m visibility. Phosphorus: 61.3 µg/L. Chlorophyll-a (algae): 16.5 µg/L.
- Clarity
- 0.9 m
Why Mere Mere (Mid Mere has no A–F grade
Mere Mere (Mid Mere in England is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the Environment Agency (England).
Mere Mere (Mid Mere is a lake in Gtr Mancs Mersey and Ches County, England.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-02-27. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Mere Mere (Mid Mere
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 3 ft of visibility. Phosphorus level: 61.3 µg/L. Chlorophyll-a: 16.5 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.92 m | Not graded |
| Phosphorus | 61.3 µg/L | Not graded |
| Chlorophyll-a (Algae) | 16.5 µg/L | Not graded |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Mere Mere (Mid Mere
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Fishing Mere Mere (Mid Mere
Frequently asked questions about Mere Mere (Mid Mere
What is the water quality of Mere Mere (Mid Mere?
- Mere Mere (Mid Mere in Gtr Mancs Mersey and Ches, England has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 0.9 m visibility. Phosphorus: 61.3 µg/L. Chlorophyll-a (algae): 16.5 µg/L.
Is Mere Mere (Mid Mere safe to swim in?
- Mere Mere (Mid Mere has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
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Where this data comes from
149 measurements from 1 monitoring station, 2016–2020. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Environment Agency (England)
ea-wqa149 samples · 2016–2020
Monitoring station identifiers (1)
NW-88023328
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2020-02-27
Monitoring stations: 1