For your Sunday afternoon reading pleasure comes this delightful press release from Lake George Waterkeeper Chris Navitsky. The FUND for Lake George and the Waterkeeper are working together to support state legislation to ban the sale of high phosphorus household cleaners and fertilizers. According to Navitsky, studies find 50 percent of phosphorus in stormwater runoff comes from lawn fertilizers and nine to 34 percent of phosphorus in municipal sewage treatment plants is from household cleaning products. New York law would follow laws in Minnesota, Maine and Wisconsin and a law just enacted in Westchester County. You’ve got a lot of science and policy reading ahead of you, so enjoy!
Lake George – The FUND for Lake George and Lake George Waterkeeper support new state legislation to ban the sale of high phosphorus products used for household (and commercial) cleaning supplies and in lawn fertilizers. The impact of the widespread use of these products is that they contribute to water pollution across New York. In this action, New York follows successful legislative efforts of the state of Minnesota, which passed similar legislation in 2005, and Maine, which started its law on January 1, 2008, and Wisconsin, which just passed similar legislation in April 2009. Local laws banning phosphorus in household cleaning products and lawn fertilizers have passed a number of counties in Michigan, Florida, and Illinois, among other states such as Maryland and Vermont. In New York, Westchester County recently passed a phosphorus product sale ban in order to protect the water quality of its public drinking water supply reservoirs and the Long Island Sound. Studies of the Minnesota law found 97% compliance in retail establishments, no higher costs for consumers, and found an overall decrease in phosphorus loading to state waters.
“One pound of phosphorus can make 50-60 pounds of algae in a lake or pond” said Peter Bauer, Executive Director of the FUND for Lake George. “This state legislation would have a positive impact on Lake George where overall phosphorus levels have continued to rise due to poor lawn management, lack of stream buffers, poorly designed and managed septic systems, and high volumes of stormwater runoff. Limiting the amount of phosphorus used in fertilizers and in household cleaning products used primarily for dishwashing, is an important tool to help protect the water quality of Lake George.”
This legislation prohibits the sale or distribution of household/commercial cleaning products used in dishwashers that contain 0.5% by weight of a phosphorus compound, reduced from 8.7%, and to prohibit the use of such products in commercial establishments as of July 1, 2010. High phosphorus household cleaning detergents often include as much as 9% phosphorus and are often responsible for between 9 – 34% of the total phosphorus in municipal water treatment plants. The legislation bans the sale of fertilizers that contains 0.67% by weight of phosphorus. The NYS Department of Environmental Conservation estimates that fertilizers can be responsible for 50% of the total phosphorus in stormwater runoff. Phosphorus loading continues to negatively impact Lake George.
“It’s important to limit the amount of phosphorus that is being loaded into Lake George” said Chris Navitsky, the Lake George Waterkeeper. “Each time it rains, improperly managed stormwater loads phosphorus into the lake. Phosphorus in fertilizers is being washed into Lake George, is not being absorbed into the soils and becoming absorbed into soils and is failing its intended use.”
The issue of phosphorus loading into Lake George has long been identified as a major long-term problem facing the lake. The 2001, the Lake George Park Commission published a report “Total Phosphorus Budget Analysis for the Lake George Watershed” by Sterns & Wheler, which concluded that “The majority of phosphorus loading is from surface water runoff, with a disproportionate amount of runoff derived from developed area round the lake as compared to undeveloped (forested and agricultural) areas. Although developed areas only account for 5 percent of the land area in the watershed, they produce 43 percent of all the phosphorus that enters the lake as surface runoff.” The report also calculated that Lake George is receiving 300% of the amount of phosphorus that it can naturally process.
Lake George is buffered somewhat as compared with other lakes across New York as its watershed is 95% forested. The undeveloped natural forest systems around Lake George load phosphorus to the lake. This happens as leaves and twigs that fall into the lake decay and as sediment is carried to the lake as part of the natural stream bed load, among other ways. A healthy Lake George needs phosphorus to function. Excess phosphorus causes water pollution and the natural aging processes are accelerated.
The Sterns & Wheler report stated that undeveloped areas around Lake George, which includes 95% of the entire watershed (some 141,500 acres), produces as much phosphorus as the developed 5% of the watershed (some 7,500 acres). Just 5% of the watershed around Lake George is developed with houses, roads, parking lots, barns, stores, parks, sewers, yards, and a whole lot more, whereas. 95% is still relatively wild, either in private forest lands, a backyard forest, or as part of the state’s Forest Preserve. From this 2001 study the developed areas deliver phosphorus to the Lake George at a ratio of 15-1 when compared with natural forest areas. This is consistent with research around the U.S. that compares developed areas with non-developed areas. Use of household cleaning detergents and fertilizers are part of the overall phosphorus loading problem.
As mentioned above, Lake George receives 300% more phosphorus than it can process naturally. What happens to phosphorus-rich waters? They steadily lose water clarity as transparency in the water is lost as microscopic algal life is stimulated. They stimulate greater plant growth, which is turns creates more decayed matter on the lake bottom thus changing the aquatic system as this matter accumulates. Phosphorus rich waters are also very hospitable to invasive aquatic species, such as Eurasian Watermilfoil (EWM), which require high levels of nutrients. High phosphorus rates are also a human health issue as this can make water not safe to drink. High levels of phosphorus also contribute to creation each summer of a “dead zone” on Lake George where oxygen levels are depleted due to high nutrient levels making large parts of the lake unable to support fish life. Lake George has been experiencing a slow, steady decline in water quality. Land use changes and poor land use practices on just 5% of the land areas around the lake have changed the lake’s water quality.
“Legislation to control phosphorus pollution from household cleaning products and lawn fertilizers is critical to help manage and reduce water pollution across New York. Lake George is enormously important to the local economy. In many ways, Lake George is the engine of the Warren County economy. The high property values, robust tourism season, sport fishing and boating industries, among others, all require clean water” said Peter Bauer.
“If this legislation is unsuccessful at the state level, we would explore whether or not it’s feasible for the Lake George Park Commission to undertake a similar effort within the Lake George watershed” said Chris Navitsky.