Stormwater pond/wetland – operation and maintenance checklist Revision as of 17:36, 4 August 2022 by Mtrojan (talk | contribs)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Stormwater pond/wetland – operation and maintenance checklist

Stormwater pond/wetland – operation and maintenance checklist.
Link to this table
To access an Excel version of form (for field use), click here.

Project:
Location:
Site Status:
Date:
Time:
Inspector:
Maintenance Item	Satisfactory / Unsatisfactory	Comments
1. Embankment and emergency spillway (Annual, After Major Storms)
1. Vegetation and ground cover adequate
2. Embankment erosion
3. Animal burrows
4. Unauthorized planting
5. Cracking, bulging, or sliding of embankment
a. Upstream face
b. Downstream face
c. At or beyond toe
downstream
upstream
d. Emergency spillway
6. Pond, toe & chimney drains clear and functioning
7. Seeps/leaks on downstream face
8. Slope protection or riprap failure
9. Vertical/horizontal alignment of top of dam “As-Built”
10. Emergency spillway clear of obstructions and debris
11. Other (specify)
Riser and principal spillway (Annual)
Type: Reinforced concrete ______ Corrugated pipe ______ Masonry ______ 1. Low flow orifice obstructed
N2. Low flow trash rack. a. Debris removal necessary
b. Corrosion control
3. Weir trash rack maintenance a. Debris removal necessary
4. Excessive sediment accumulation insider riser
5. Concrete/masonry condition riser and barrels a. cracks or displacement
No evidence of erosion at downstream toe
b. Minor spalling (<1” )
c. Major spalling (rebars exposed)
d. Joint failures
No evidence of erosion at downstream toe
No evidence of erosion at downstream toe
e. Water tightness
6. Metal pipe condition
7. Control valve a. Operational/exercised
No evidence of erosion at downstream toe
b. Chained and locked
8. Pond drain valve a. Operational/exercised
b. Chained and locked
9. Outfall channels functioning
10. Other (specify)
3. Permanent Pool (Wet Ponds) (Monthly)
1. Undesirable vegetative growth
2. Floating or floatable debris removal required
3. Visible pollution
4. Shoreline problem
5. Other (specify)
4. Sediment Forebays
1.Sedimentation noted
2. Sediment cleanout when depth < 50% design depth
5. Dry Pond Areas
1. Vegetation adequate
2. Undesirable vegetative growth
3. Undesirable woody vegetation
3. Undesirable woody vegetation
4. Low flow channels clear of obstructions
5. Standing water or wet spots
6. Sediment and / or trash accumulation
7. Other (specify)
6. Condition of Outfalls (Annual , After Major Storms)
1. Riprap failures
2. Slope erosion
3. Storm drain pipes
4.Endwalls / Headwalls
5. Other (specify)
7. Other (specify)
7. Other ( Monthly)
1. Encroachment on pond, wetland or easement area
2. Complaints from residents
3.Aesthetics a. Grass growing required
b. Graffiti removal neededs
c. Other (specify)
4. Conditions of maintenance access routes.
5. Signs of hydrocarbon build-up
6. Any public hazards (specify)
8. Wetland Vegetation (Annual))
1. Vegetation healthy and growing Wetland maintaining 50% surface area coverage of wetland plants after the second growing season. (If unsatisfactory, reinforcement plantings needed)
2. Dominant wetland plants: Survival of desired wetland plant species Distribution according to landscaping plan?
3. Evidence of invasive species
4. Maintenance of adequate water depths for desired wetland plant species
5. Harvesting of emergent plantings needed
6. Have sediment accumulations reduced pool volume significantly or are plants “choked” with sediment
7. Eutrophication level of the wetland.
8. Other (specify)
Comments:
Actions to be taken: