Alabama Water Quality Information System

— Choose a Frequently Asked Question (FAQ) —


	1.-		Are all injection wells waste disposal wells?


	2.-		Are onsite decentralized wastewater systems more prevalent in some areas of the country than others?


	3.-		Are the three standard steps of solids removal, oxidizing of pollutants and disinfecting the remaining wastewater always followed by every wastewater treatment plant regardless of weather conditions?


	4.-		Are there any commercial uses for duckweed?


	5.-		Are there any prescribed national standards for pretreatment that industries must follow to discharge their wastewater into municipal sewer systems?


	6.-		Are there any prescribed national standards for wastewater pretreatment?


	7.-		Are there benefits from land applying drinking water treatment residuals?


	8.-		Are there environmental concerns for excessive molybdenum (Mo) being applied to agricultural land from wastewater irrigation, reclaimed irrigation water, or from composted or dewatered biosolids?


	9.-		Are there negative agronomic impacts from land applying drinking water treatment residuals?


	10.-		Can algae have beneficial effects in wastewater treatment?


	11.-		Can chitosan aid in the removal of metal ions like copper (Cu++) and zinc (Zn++) from water?


	12.-		Can hydrogen peroxide (H2O2) be used to de-chlorinate municipal wastewater?


	13.-		Do biological criteria, as they relate to water quality, have to be codified in State regulations to be used in implementing pollution discharges?


	14.-		Do I need an NPDES permit?


	15.-		Do inorganic compounds containing reduced forms of sulfur such as sulfides or thiosulfates add to biological and chemical oxygen demands (BOD/COD) of wastewater?


	16.-		Do mineral waste by-products have any value for agriculture?


	17.-		Do onsite/decentralized wastewater systems cause health or water quality problems?


	18.-		Does a particular MS4 lie within an urbanized area?


	19.-		Has the design of modern landfills completely eliminated groundwater contamination from landfills?


	20.-		How are nutrients removed at wastewater treatment plants?


	21.-		How are onsite/decentralized wastewater systems regulated?


	22.-		How big is the Sanitary Sewer Overflow (SSO) problem?


	23.-		How can biological water quality criteria be used in a National Pollutant Discharge Elimination System (NPDES) permit program?


	24.-		How can businesses and industries get involved in the Superfund program?


	25.-		How can I find out about a proposed NPDES permit for a facility near me so that I can participate in the permitting process?


	26.-		How can Sanitary Sewer Overflows (SSOs) be reduced or eliminated?


	27.-		How did the Transportation Act affect storm water permitting requirements for municipalities under 100,000?


	28.-		How do hazardous wastes differ from other solid wastes?


	29.-		How do I get more information on Class V injection wells?


	30.-		How do NPDES permits protect water?

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This website was developed by the ACES Water Quality Team, under the leadership of Dr. James E. Hairston. It is funded, in part, by USDA-CSREES water quality grant support under Section 406 of the Agricultural Research, Extension and Education Reform Act of 1998.