Kolding Dam Lake
Grand Forks County, North Dakota10 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Impaired · Nutrients (phosphorus, nitrogen)
- Limited data
Kolding Dam Lake in Grand Forks County, North Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility. Surface area: 9.8 acres.
- Clarity
- 1.7 ft
- Typical in September
- 61°F
- Area
- 10 acres
Stays via Stay22
Stays near Kolding Dam Lake
Compare lakeside cabins, hotels, and vacation rentals near Kolding Dam Lake in Grand Forks County, North Dakota — 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 Kolding Dam Lake
Prices for Sep 11–13, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at North Dakota’s top lakes →
Watch Kolding Dam Lake’s letter
Email me if this lake’s grade moves. Grades stay free.
Or email
Why Kolding Dam Lake has no grade
Kolding Dam Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Kolding Dam Lake is Not Rated — not an F. Its 1.7-foot median from 8 readings collected 2025 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by NDDEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Kolding Dam Lake is a 10-acre lake in Grand Forks County, North Dakota.
Source: EPA Water Quality Portal sampling records, NDDEQ, last sampled 2025-10-13. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Kolding Dam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Water quality measurements for Kolding Dam Lake
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 1.7 ft of visibility. TSI 70.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.7 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 70 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Temperature
Kolding Dam Lake typically sits around 61°F at the surface in September. Summer average is about 71°F. Usually warmest in Jul (about 73°F) and coldest in Oct (about 53°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 15 field readings (2015–2025) via the EPA Water Quality Portal. See the full Kolding Dam Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 10 acres |
No bathymetric survey has been published for Kolding Dam Lake, so its depth is not documented here.
Fishing Kolding Dam Lake
Reservoir Info (USACE NID)
Kolding Dam Lake is a man-made reservoir impounded by the Kolding Dam (completed 1972), built primarily for flood risk reduction on the Whisky Ceek-TR; earth-type dam, 71 ft tall and 3,455 ft long.
- Surface area
- 9.8 ac
- Normal storage
- 73.5 ac-ft
- Max storage
- 1,983 ac-ft
- Drainage area
- 11.2 sq mi
- Hazard class
- Significant
- Owner
- Grand Forks County WRB
Source: USACE National Inventory of Dams, NID ID ND00306 · Operator website
EPA Impairment Status
Kolding Dam Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit ND-09020307-004-L_00 · Official waterbody report
Graded lakes near Kolding Dam Lake
Kolding Dam Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Grand Forks County
Frequently asked questions about Kolding Dam Lake
Where is Kolding Dam Lake?
- Kolding Dam Lake is a lake in Grand Forks County, North Dakota. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Kolding Dam Lake?
- Kolding Dam Lake in Grand Forks County, North Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility. Surface area: 9.8 acres.
Is Kolding Dam Lake safe to swim in?
- The letter is not a swimming clearance. Kolding Dam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
What is the water temperature of Kolding Dam Lake?
- Kolding Dam Lake typically sits around 61°F at the surface in September, from 15 EPA Water Quality Portal field readings (2015–2025). That is a typical value for the month, not a live reading.
Explore Kolding Dam Lake across LakeQuality
More North Dakota Lake Rankings
Other Lakes in North Dakota
Eutrophic Lakes in North Dakota
Where this data comes from
8 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Dakota Department Of Environmental Quality
21NDHDWQ_WQX8 samples · 2025
Analytical methods
- Phosphorus by Colorimetry
- 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
- 4500 NO3 E ~ Nitrate in Water- Cadmium Reduction
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
Depth, fish, and access data from North Dakota Game & Fish