Full Text
Site ID/Name: Location: Date: Comments: Vegetated Filter Strip Good Examples: Examples of Potential Issues: 12 Erosion & 20 Plant Health (Poor; >50%) 12 Erosion & 20 Plant Health (Fair; 25-50%) 18 Debris (Poor; >25%) General Inspection Questions (YES / NO) Note: ‘Yes’ indicates a maintenance need and action General: 1. Is access to the site inadequately maintained for inspection and maintenance? 2. Are grass clippings present in the drainage area or within the system [inlet structure, pretreatment, main treatment, and outlet structure]? (Note: grass clippings should be removed Drainage Area (pertains to the surrounding landscape that contributes runoff to the practice) 3. Is there any exposed or unstable soil that could cause sediment accumulation within the practice? 4. Do the drainage ways (overland flow or pipes) to the practice have trash, debris, large branches, etc. present? Inlet Structure / Pretreatment: 5. Is there presence of cracks or structural damage in concrete trough for pea gravel diaphragm or other level or flow spreader? 6. Does this area have trash, debris, and sediment present? 7. Is there evidence of runoff short-circuiting (going around) the filter? 8. Is there evidence of gullies, rills, or erosion around the inlet or pre-treatment structure? 9. Does the area around the inlet structure need to be mowed? 10. If a diversion structure (high flow bypass structure or overflow spillway) is present, is there presence of trash, debris, or sediment? YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO Main Treatment: 11. Is the grass between 3-12 inches, or between 6-15 inches along a roadway? 12. Is there evidence of gullies, rills, or erosion in the filter? 13. Has sediment accumulated in the filter? 14. Is there evidence of long-term ponding or standing water in the practice? stains, odors, mosquito larvae, etc.) 15. Is there any evidence of fertilizer use on plants fertilizer crusting on surface of soil, tips of leaves turning brown or yellow, blackened roots, etc.) Outlet Structure: 16. Do these structures have trash, debris, or sediment present? 17. Is there evidence of erosion, scour, or flooding around the structure? YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO YES / NO Qualitative Inspection Questions (GOOD /MARGINAL / POOR) Note: ‘Poor’ indicates a maintenance need and action 18. Rate the presence of debris leaves or trash) in the filter. 19. Rate the presence of undesirable vegetation unwanted or invasive). 20. Rate the condition of plant health (percentages indicate dying/stressed). GOOD MARGINAL (10-25%) POOR GOOD MARGINAL (25-50%) POOR GOOD MARGINAL (25-50%) POOR