Nonpoint Source Water Pollution 249-farmer uses contour stripped planting
-soil is Fayette silt loam
-slope = 7%
--slope length = 200 ft.
11.3 On-site wastewater treatment and disposal systems are criticized for creating
nonpoint source water pollution. Describe the pollutants that would be generated from
on-site wastewater treatment and identify BMPs (or other approaches) that could be
used to control the pollutants.
11.4 Discuss the wastewater treatment technologies in Chap. 9 that are particu-
larly applicable to help control pollution from urban storm water runoff.
11.5 Calculate the cost of controlling runoff from the construction of a 5-mile
highway link across rolling countryside near the city or town where you live. Assume
that hay bales are sufficient along the construction site if they are coupled with
burlap barriers at key locations. No major collection or treatment works are required.
Document your assumptions, including labor and materials charges, as well as time
commitments.
11.6 Design a water quality monitoring plan to assess the effectiveness of a wet
pond constructed to treat urban runoff. Assume that the pond was sized to contain a
6-month storm event, the pond discharges into a lake that is the drinking water source
for a city of 100,000, and the watershed draining into the wet pond is predominantly
residential. Describe the pollutants you would measure, the frequency of monitoring,
and the hydrologic conditions that you would select for sampling.
Optional: contact a local water testing laboratory and determine the approximate
cost for your monitoring plan, including labor and transportation costs, sample analysis
fees, and report production costs.