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LakeQuality
B

Lords Lake

Pine County, MinnesotaLimited DataMesotrophic

Lords Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

Mesotrophic conditions dominate at Lords Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. A maximum depth of 42 ft puts Lords Lake in the middle of Minnesota's depth distribution. At 527 acres, Lords Lake fits the Minnesota median for monitored lakes, with 7.2 miles of shoreline. Lords Lake ranks 9 of 20 in Pine County — solidly in the upper half of the local distribution.

Eurasian watermilfoil is established at Lords Lake, which can dampen recreational access and pressure the native plant community. Muskie are on the species list at Lords Lake, alongside the lake's 13 other documented fish. A documented public access point at Lords Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a partial ice record — 18 observed ice-outs, centered near Apr 20. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-05-25. Grade methodology: LakeGrade methodology.

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 12 ft. Trophic State Index: 41.

MetricValueGrade
Water Clarity (Secchi Depth)12 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)41Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth42 ft
Surface Area526.7 acres
Shoreline Length7.2 mi
Littoral Zone51%
Public AccessYes

Fish Species

Click a species to see every graded lake where it is documented.

→ Best fishing times for Lords Lake (14-day solunar calendar)

→ Is it safe to eat fish from Lords Lake? (mercury & PFAS guide)

Lords Lake fishing regulations (limits, seasons, special rules)

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Eurasian watermilfoil

Water Quality Trend: Stable

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.016 m/yr6
See year-by-year chart →

Ice Season

Historical ice data from Minnesota DNR (27 observations).

Typical Ice-Out
Apr 20
Typical Ice-In
Dec 1

Estimated open water season: 225 days

EarliestLatest
Ice-Out2012-03-25 (2012)2014-05-06 (2014)
Ice-In2014-11-14 (2014)2015-12-18 (2015)

Most recent ice-out: 2025-04-09

Location

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County Ranking

Ranked #9 of 20 lakes in Pine County

Cleaner Lakes Within 30 Miles

Lords Lake holds Grade B. One nearby lake has a higher grade.

Nearby Lakes in Pine County

EPA Impairment Status

Lords Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN58-0081-00 · Official waterbody report · Matched by proximity (1.41 km)

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Ice data from Minnesota DNR Climate

Most recent sample: 2025-05-25

Monitoring stations: 1