Holden City Lake Nr. Dam
Johnson County, WisconsinEutrophic
Holden City Lake Nr. Dam is a 380-acre productive, nutrient-rich eutrophic lake in Johnson County, MO. Water quality is graded F based on 3 sampling years through 2022. Compared to the 4 other monitored lakes in Johnson County, Holden City Lake Nr. Dam ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-10-13. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2 ft of visibility. Phosphorus level: 96 µg/L. Chlorophyll-a: 39.2 µg/L. Trophic State Index: 68.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | F |
| Phosphorus | 96 µg/L | F |
| Chlorophyll-a (Algae) | 39.2 µg/L | F |
| Trophic State Index (TSI) | 68 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 380 acres |
Location
County Ranking
Ranked #5 of 5 lakes in Johnson County
Cleaner Lakes Within 30 Miles
Holden City Lake Nr. Dam holds Grade F. 5 nearby lakes hold higher grades.
- BRock Lake Village LakeJohnson County · 8.8 mi · Two grade letters higher (F → B)
- CLotawana Lk. LakeJackson County · 16.6 mi · Two grade letters higher (F → C)
- DHazel Hill Lake by DamJohnson County · 15.2 mi · Higher grade (F → D)
- FHarrisonville LakeCass County · 15.7 mi · Higher overall water quality score
- FCottontail LakeJackson County · 17.3 mi · Higher overall water quality score
Nearby Lakes in Johnson County
More Wisconsin Lake Rankings
Other Grade F Lakes in Wisconsin
St. Louis County · Clarity: 1.6 ft
Jackson County · Clarity: 2 ft
St. Charles County · Clarity: 2.3 ft
St. Francois County · Clarity: 1.1 ft
Saline County · Clarity: 2.3 ft
Polk County · Clarity: 1.2 ft
Eutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Holden City Lake Nr. Dam is a man-made reservoir impounded by the Holden New City Reservoir (completed 1980), built primarily for recreation on the TRIB SOUTH FORK BLACKWATER; earth-type dam, 58 ft tall and 3,350 ft long.
- Surface area
- 380 ac
- Normal storage
- 3,413 ac-ft
- Max storage
- 6,300 ac-ft
- Drainage area
- 4.5 sq mi
- Hazard class
- High
- Owner
- CITY OF HOLDEN
All listed purposes: Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID MO20532 · Operator website · Matched by proximity (0.22 km)
EPA Impairment Status
Holden City Lake Nr. Dam 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 MO_7193.00 · Official waterbody report · Matched by proximity (0.66 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
Most recent sample: 2022-10-13
Monitoring stations: 1