Rock Lake Village Lake
Johnson County, Missouri27 acresView mapDirections
Missouri DNR publishes the water-quality measurements for Rock Lake Village Lake. Here is what has been measured.
- Mesotrophic
Rock Lake Village Lake in Johnson County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 4.3 ft visibility. Phosphorus: 16 µg/L. Chlorophyll-a (algae): 4.8 µg/L. Surface area: 27 acres.
Rock Lake Village Lake is a 27-acre mesotrophic lake in Johnson County, Missouri. Overall water quality is improving over recent sampling years. Compared to the 3 other monitored lakes in Johnson County, Rock Lake Village Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-08-27. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Rock Lake Village Lake is safe to swim in today is a call for the Missouri Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Rock Lake Village Lake
These are the measurements Missouri DNR publishes for Rock Lake Village Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.3 ft. Phosphorus 16 µg/L. Chlorophyll-a 4.8 µg/L. TSI 49.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 16µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 4.8µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 49 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Rock Lake Village Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Rock Lake Village Lake typically sits around 75°F at the surface in September. Summer average is about 79°F. Usually warmest in Jul (about 82°F) and coldest in Apr (about 65°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (65°F) to its warmest (82°F).
Typical surface water temperature by month, from 27 field readings (2020–2024) via the EPA Water Quality Portal. See the full Rock Lake Village Lake water temperature breakdown →
Lake Details
Surface area
27 acres
No bathymetric survey has been published for Rock Lake Village Lake, so its depth is not documented here.
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Fishing Rock Lake Village Lake
Water Quality Trend: Improving
Based on 5 years of monitoring (2020–2024).
Water clarity
Stable5 years
Phosphorus
Improving-0.9 µg/L/yr5 years
Chlorophyll-a
Improving-0.63 µg/L/yr5 years
Reservoir Info (USACE NID)
Rock Lake Village Lake is a man-made reservoir impounded by the Rock Lake Village Dam (completed 2006) on the Trib. Blackwater river; earth-type dam, 66 ft tall and 730 ft long.
- Surface area
- 27 ac
- Normal storage
- 540 ac-ft
- Max storage
- 585 ac-ft
- Drainage area
- 0.11 sq mi
- Hazard class
- High
Source: USACE National Inventory of Dams, NID ID MO40148 · Operator website
Regulated Pollution Sources Nearby
5 EPA-permitted facilities operate within about 5 miles of Rock Lake Village Lake under Clean Water Act (NPDES) discharge permits. 3 facilities have a reported Clean Water Act violation in the past three years.
- Republic Foods FacilityLone Jack · 1.9 mi away · NPDES MO0139009Recent violation
- Powell Gardens WwtfsKingsville · 2 mi away · NPDES MO0123501Recent violation
- Shell Xpress Kingsville LlcKingsville · 2.4 mi away · NPDES MO0124729Recent violation
- Powell'S Creekside HavenKingsville · 1.5 mi away · NPDES MO0139840
- Maplewood Estates WwtfHolden · 4.9 mi away · NPDES MO0127167
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Johnson County
Frequently asked questions about Rock Lake Village Lake
Where is Rock Lake Village Lake?
- Rock Lake Village Lake is a lake in Johnson County, Missouri. Its water-quality measurements are published by Missouri DNR and shown on this page as reported.
What is the water quality of Rock Lake Village Lake?
- Rock Lake Village Lake in Johnson County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 4.3 ft visibility. Phosphorus: 16 µg/L. Chlorophyll-a (algae): 4.8 µg/L. Surface area: 27 acres.
Is Rock Lake Village Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Rock Lake Village Lake?
- Rock Lake Village Lake typically sits around 75°F at the surface in September, from 27 EPA Water Quality Portal field readings (2020–2024). That is a typical value for the month, not a live reading.
Explore Rock Lake Village Lake across LakeQuality
More lakes in Missouri
Other Lakes in Missouri
Mesotrophic Lakes in Missouri
Where this data comes from
80 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Univ. of Missouri, Columbia
UMC80 samples · 2020–2024
Analytical methods
- Depth, Secchi disk in meters
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)