Spring Garden Lake Mid Lake
Spring Garden Lake Mid Lake in Morris County, New Jersey is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility.
- Clarity
- 2 ft
Why Spring Garden Lake Mid Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Spring Garden Lake Mid Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Spring Garden Lake Mid Lake is a lake in Morris County, New Jersey.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2026-07-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedBacteria advisory
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Spring Garden Lake Mid Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 2 ft of visibility. Trophic State Index: 67.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 67 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Spring Garden Lake Mid Lake
Compare lakeside cabins, hotels, and vacation rentals near Spring Garden Lake Mid Lake in Morris County, New Jersey — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Spring Garden Lake Mid Lake
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Fishing Spring Garden Lake Mid Lake
EPA Impairment Status
Spring Garden Lake Mid Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NJ02030103010150-01 · Official waterbody report · Matched by proximity (1.25 km)
Graded lakes near Spring Garden Lake Mid Lake
Spring Garden Lake Mid Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Morris County
Frequently asked questions about Spring Garden Lake Mid Lake
Where is Spring Garden Lake Mid Lake?
- Spring Garden Lake Mid Lake is a lake in Morris County, New Jersey. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Spring Garden Lake Mid Lake?
- Spring Garden Lake Mid Lake in Morris County, New Jersey is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility.
Is Spring Garden Lake Mid Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Spring Garden Lake Mid Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Spring Garden Lake Mid Lake across LakeGrade
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Where this data comes from
6 measurements from 1 monitoring station, 2025–2026. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- Princeton Hydro LLC
PRINCETONHYDRO6 samples · 2025–2026
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database