Port Perry Lake North Arm is a 12-acre mesotrophic lake in Perry County, Missouri. Water quality is graded B based on 3 sampling years through 2024. Compared to the 2 other monitored lakes in Perry County, Port Perry Lake North Arm ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-17. Grade methodology: LakeGrade methodology.
Watch Port Perry Lake North Arm water quality
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 7.4 ft. Phosphorus level: 9.5 µg/L. Chlorophyll-a: 2.9 µg/L. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.4 ft | C |
| Phosphorus | 9.5 µg/L | A |
| Chlorophyll-a (Algae) | 2.9 µg/L | A |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 12 acres |
Where to stay near Port Perry Lake North Arm
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Fishing Port Perry Lake North Arm
Location
County Ranking
Ranked #3 of 3 lakes in Perry County
Cleaner Lakes Within 30 Miles
Port Perry Lake North Arm holds Grade B. 2 nearby lakes hold higher grades.
- APort Perry LakePerry County · 0.8 mi · Higher grade (B → A)
- AGoose Creek LakeSte. Genevieve County · 25.7 mi · Higher grade (B → A)
Nearby Lakes in Perry County
Explore Port Perry Lake North Arm across LakeGrade
More Missouri Lake Rankings
Other Grade B Lakes in Missouri
Mesotrophic Lakes in Missouri
More records, surveys & data sources
Reservoir Info (USACE NID)
Port Perry Lake North Arm is a man-made reservoir impounded by the Port Perry #2 Lake Dam (completed 1972), built primarily for recreation on the TR-NATIONS CREEK; earth-type dam, 30 ft tall.
- Surface area
- 12 ac
- Normal storage
- 110 ac-ft
- Max storage
- 193 ac-ft
- Drainage area
- 95 sq mi
- Hazard class
- High
- Owner
- VINCENT KOVARIK
Source: USACE National Inventory of Dams, NID ID MO31098 · Operator website · Matched by proximity (0.2 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-17
Monitoring stations: 1