LAR 512 – Fall 2002

PROBLEM #10 – HYDRIC SOIL & HYDROLOGY ASSESSMENT

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Click here to download the data forms (in PDF format) for Routine Wetland Determination from the 1987 COE Wetlands Delineation Manual. You can find the complete COE Wetlands Delineation Manual at <http://www.wes.army.mil/el/wetlands/pdfs/wlman87.pdf>. Using the soil profile description, determine whether Gleyed or Low-Chroma Colors are present within 12-inches of the soil surface (See Wetland Indicators for non sandy soils, page 24-27 of COE Manual), and answer the following questions. Also, make field observations of hydrology (See Wetland Hydrology, page 28-34 of COE Manual).

1. Using Wetland Data Form #1, make field observations of hydrology and record the:
1. Depth of Surface Water __________
2. Depth to Free Water in Pit __________
3. Depth to Saturated Soil __________
4. List any primary and secondary indicators that are present _______________________________________________________________________________________________________________________________________________________________

2. Does Wetland Data Form #1 indicate that the Wetland Hydrology Criterion is met? __________

3. Using Wetland Data Form #1, determine if the “Gleyed or Low-Chroma Colors” are present with 12-inches? __________

4. Does Wetland Data Form #1 indicate that the Hydric Soil Criterion is met? __________

5. Considering the Hydrophytic Vegetation, Wetland Hydrology, and Hydric Soil Criteria, does Wetland Data Form #1 represent a wetland pursuant to 1987 COE Manual? _____

6. Using Wetland Data Form #2, make field observations of hydrology and record the:
1. Depth of Surface Water __________
2. Depth to Free Water in Pit __________
3. Depth to Saturated Soil __________
4. List any primary and secondary indicators that are present _______________________________________________________________________________________________________________________________________________________________

7. Does Wetland Data Form #2 indicate that the Wetland Hydrology Criterion is met? __________

8. Using Wetland Data Form #2, determine if the “Gleyed or Low-Chroma Colors” are present with 12-inches? __________

9. Does Wetland Data Form #2 indicate that the Hydric Soil Criterion is met? __________

10. Considering the Hydrophytic Vegetation, Wetland Hydrology, and Hydric Soil Criteria, does Wetland Data Form #2 represent a wetland pursuant to 1987 COE Manual? _____

11. Using Wetland Data Form #3, make field observations of hydrology and record the:
1. Depth of Surface Water __________
2. Depth to Free Water in Pit __________
3. Depth to Saturated Soil __________
4. List any primary and secondary indicators that are present _______________________________________________________________________________________________________________________________________________________________

12. Does Wetland Data Form #3 indicate that the Wetland Hydrology Criterion is met? __________

13. Using Wetland Data Form #3, determine if the “Gleyed or Low-Chroma Colors” are present with 12-inches? __________

14. Does Wetland Data Form #3 indicate that the Hydric Soil Criterion is met? __________

15. Considering the Hydrophytic Vegetation, Wetland Hydrology, and Hydric Soil Criteria, does Wetland Data Form #3 represent a wetland pursuant to 1987 COE Manual? _____

16. Using Wetland Data Form #4, make field observations of hydrology and record the:
1. Depth of Surface Water __________
2. Depth to Free Water in Pit __________
3. Depth to Saturated Soil __________
4. List any primary and secondary indicators that are present _______________________________________________________________________________________________________________________________________________________________

17. Does Wetland Data Form #4 indicate that the Wetland Hydrology Criterion is met? __________

18. Using Wetland Data Form #4, determine if the “Gleyed or Low-Chroma Colors” are present with 12-inches? __________

19. Does Wetland Data Form #4 indicate that the Hydric Soil Criterion is met? __________

20. Considering the Hydrophytic Vegetation, Wetland Hydrology, and Hydric Soil Criteria, does Wetland Data Form #4 represent a wetland pursuant to 1987 COE Manual? _____