. Historically, health codes did not distinguish between greywater and black water (toilets). Greywater had to be collected with blackwater and discharged into the sewer system or treatment plant, and the reuse of greywater was illegal. That began to change in the early 1990s, when drought-prone California realized that this potential source of irrigation water was being wasted. The State Sanitation Code has been amended to allow for legal reuse. Greywater proponents of the time will tell you how this code, while a positive first step, was practically useless. It treated graywater like septic water and required a small septic tank to remove it deep underground (with a tank and leaching lines filled with silica). People interested in irrigation with greywater still had to build illegal systems. In California alone, an estimated 1.7 million unapproved systems exist. States like Arizona that have followed the California code example have had a similar experience. There are also areas in state waters that have been designated as Non-Discharge Zones (NDZs). An NDZ prohibits the discharge of sewage, whether treated or untreated, from a ship into these state waters. In Florida, there are NDZs near Fort Walton Beach and around the Florida Keys.
The Florida Clean Ocean Act, Section 376.25, F.S., was enacted in July 2008. The law tasked the Florida Department of Environmental Protection with introducing a gambling vessel registration program. The Ministry developed and adopted Chapter 62-606 F.A.C., Releases from Gambling Vessels, on April 4, 2010. The rule requires owners/operators of gaming vessels to register with the DEP and report the discharge of waste into Florida`s coastal waters. It also requires riparian landing facilities (berths) to provide certain waste management services and requires the Department to provide an estimate of the minimum waste service requirement for each berth on its website. Although it is considered innovative in modern house building techniques, the graywater drainage program is simply another form of the old septic tank – a method of treatment that becomes almost archaic with the growth of mandatory sewer connections. • What is this powdery crust on the pipe fittings of the water heater? • My water bill has gone up a lot in the last month. How do I search for a leak? Wastewater from kitchen sinks is not on the list due to the high organic matter content of food waste, which would increase bacterial activity in the water. Florida allows recycling of laundry water, although other states do not. The likelihood that small amounts of fever in underwear and many more fecal residues in diapers will enter graywater is the problem that affects states that ban it. There are still many barriers to legal greywater systems in the county, but the trend is towards better and more user-friendly codes.
To find out how graywater is regulated in your state, check out the state`s sanitation regulations or the state Department of Environmental Health. Greywater is regulated by the Sanitary Code (Building Department) or the Ministry of the Environment. Or contact your local construction department, environmental health department, water district, or environmental groups, although they may not be up to date with the code if a recent change has occurred. Greywater codes still do not exist in many parts of the country. At the time of writing, some states regulate graywater such as septic water and require a septic removal system for it. Others, such as West Virginia and Massachusetts, only allow graywater systems in homes with composting toilets. Florida bans the use of graywater outdoors, but allows flushing toilets. Georgia allows you to transport graywater in buckets to plants, but you can`t get a permit to build a simple graywater irrigation system.
The Washington State Code allows very small systems built without authorization (according to performance guidelines), but all other systems have fairly strict requirements. Oregon charges an annual permit fee. In 1998, graywater pioneer Val Little, director of the Water Conservation Alliance of Southern Arizona (Water CASA), conducted a survey in southern Arizona and found that 13 percent of residents were illegally using graywater. The overly restrictive code prevented her from teaching people how to properly reuse graywater, so she worked to change the regulations. The end result was a performance-based code that describes health and safety requirements. Greywater systems for residential buildings that follow the guidelines are legal – without permits, fees or inspections – as long as the system produces less than 400 gallons per day. Now, water departments, NGOs such as Water CASA and the National Environmental Health Agency can offer advice, brochures, courses and financial incentives to promote the safe and legal reuse of greywater. Arizona`s success has been emulated by other states, including New Mexico and Wyoming. Finally (in 2009), California improved the state code to remove some barriers to licensing irrigation systems. • What sanitary fittings require water shut-off valves in a home? • Are plastic pipes (PVC, CPVC and PEX) safe for drinking water? • Why does water in empty houses smell like rotten eggs? Performance-based codes describe health and safety requirements for greywater systems.
Systems that meet the requirements are legal; Those who do not are not. Performance-based codes generally do not require inspections or fees, but provide a legal basis for a city to take action against a problematic system. For example, “no pooling or drainage” is a common guideline that prevents exposure to greywater, but many codes do not specify how to meet this requirement. Performance-based codes are written in simple, straightforward language. States and local jurisdictions can provide additional guidance, such as the size of a system, to avoid pooling and runoff, but more specific details are omitted from the code. To ensure that there are no significant releases of grease or suspended solids, state health officials require the use of a container outside the home. The 225-gallon fiberglass tank built into the ground then drains the water into a septic tank drainage field. The drainage field, which is a perforated pipe that passes over a rocky base, distributes water throughout the yard. “But the most important thing he does,” she adds, “is to restore the groundwater level, which is in a very bad state.” Some builders in the Florda center recycle “gray water” from sink drains and bathtubs into the ground instead of directing it to local sewer pipes, reducing wastewater coming out of a home by up to 65 percent. Greywater systems are only allowed for flushing toilets and urinals, and their installation is not an easy project. First, the residential edition of the Florida Building Code (FBC) has specific restrictions on water that can be reused: the discharge of untreated “sewage” from boats into state waters is prohibited by both state law (Florida Litter Law – 403.413, F.S.) and federal law (Clean Water Act). Note that greywater is not considered “wastewater” in the law.
Therefore, the discharge of greywater from boats into the sea around Florida is currently not prohibited. The law defines greywater from boats as “water from the kitchen, bathroom and shower”. Prescriptive codes specify exactly how a greywater system is built, including the materials and parts that can be used. Instead of saying, “No pooling or drainage allowed,” they can estimate graywater production based on the number of bedrooms in the house and the size of the irrigation area based on the type of soil. A detailed code describing how to build a greywater system leads to safer and better built systems, doesn`t it? Unfortunately, this is not the case. Greywater systems are complex; They interact with the living world of soils and plants and are influenced by water use patterns, furniture, climate and the physical layout of the house and landscape. If the code doesn`t take all of these variables into account (and in fact it never does), it leads to overly restrictive requirements that create unnecessary costs or create an inefficient irrigation system. When a code has nothing to do with reality, people ignore it and build illegal systems without a guide. Finally, since it makes sense to reuse the water we already have, why should it be difficult to get a permit, or should the fees be expensive? National standards for indoor reuse systems are being developed. NSF International recently published water quality guidelines as part of its standard for the reuse of non-potable indoor spaces (toilet flushing).
NSF 350: On-site residential and commercial water reuse treatment systems is, according to NSF, “a groundbreaking standard that establishes clear, rigid but realistic guidelines for water reuse treatment systems.” By meeting these testing requirements and obtaining certification, companies (which can afford expensive certification) should more easily obtain permits, a positive step for indoor reuse and large commercial greywater systems. • Should a hot water tap handle be on the left side? The result was a compromise of state law that allowed gray water to be discharged from the sinks on site when “black water” from toilets and garbage cans entered the sewer lines.
