Blue Plains Wasterwater Treatment Plant
(DC Water and Sewer Authority photo)
Phosphate free detergents
- Northern Virginia Waste Water Treatment Plants voluntarily impose a phosphorus limit. Virginia passes a de-chlorination initiative.
- Maryland initiates a phosphate ban and a striped bass moratorium.
- All major waste water treatment plants in the metro Washington area have achieved phosphorus removal.
- D.C. initiates a phosphate detergent ban.
- SAV distribution is now over 3,600 acres. Mechanical harvesting of hydrilla is initiated
- Blue Plains Wastewater Treatment Plant starts removing chlorine.
- A survey finds 78 species of fish in the metro Washington Potomac.
- Virginia initiates a phosphate ban.
- Maryland finds dioxin in North Branch fish.
- Polychlorinated Biphenyls (PCBs) are found in Shenandoah fish.
- PCBs and chlordane are found in fish in the Washington, D.C. area.
- The Annual Potomac River Cleanup begins with its first two sites at the Alice Ferguson Foundation and the National Colonial Farm in Accokeek, Maryland