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High Levels of Salt in Wastewater May Result in Regulatory-Mandated Treatment Improvements

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High Levels of Salt in Wastewater May Result in Regulatory-Mandated Treatment Improvements WHAT IS SALINITY? HOW YOU CAN HELP Salinity (salt) in water is a measure of dissolved mineral A few simple changes in your household can help salts such as calcium, magnesium, potassium, sodium, signifi cantly reduce the salinity in the San Juan River: sulfate, and chloride. All water supplies naturally High levels of salt in wastewater Household Cleaners contain some salt, but agricultural, industrial, and residential water users often add more salt to the may result in regulatory- Use environmentally friendly cleaning products water they use. At home, for example, the use of water mandated treatment with no phosphates, chlorine, sodium, artifi cial softeners, detergents, cleaning improvements that would result fragrances, or artifi cial colors products, liquid fabric Use dryer sheets instead of liquid fabric softener liquid softeners, soaps, and in increased sewer rates. Use shampoos all add salt dishwasher to your wastewater. and laundry detergents All of this salt-laden instead of water fl ows through powders the sewer system to the Minimize use wastewater treatment of cleaning plant. Because salt is already dissolved when it products arrives at the treatment plant, it cannot be eff ectively Water Softeners removed by the current wastewater treatment process. WHY IS SALINITY A PROBLEM IN THE CITY Use dryer sheets As a result, much of the salt simply passes through the The overuse of OF FARMINGTON? treatment plant and ends up in the San Juan River as water softeners is often a major cause of salinity part of the treated discharge. Too much salt in our wastewater can aff ect sensitive in wastewater. Many water softeners cycle more ecosystems and degrade the quality of our water supply frequently than necessary, with each recharge cycle for drinking, farming, industry, and recreation. fl ushing pounds of used salt into the sewer. If you use a water softener: Unfortunately, high levels of salt in wastewater may result in regulatory-mandated treatment improvements. Reduce your water use—the less water you treat, Installing costly systems at the treatment plant to remove the less salt you put down the drain excess salt would result in signifi cantly increased rates for Check your settings to make sure they are optimal residential and commercial users. for our hardness levels (Farmington’s municipal water supply has a hardness level of 200 - 400 ppm) Therefore, it is important for all of us to take simple Change from a timer-based to a demand-based measures to decrease the salinity in our wastewater. softener (one that recharges only when These measures will help us: needed, based on how much water is used) Provide safe, clean, and aff ordable drinking water If your softener is timer-based, make sure it Protect the environment and aquatic life recharges at the lowest eff ective rate, and turn it Avoid costly regulatory fi nes or upgrades to the off when you go on vacation treatment plant, which would result in higher sewer Install a bypass so you are not softening water rates used for landscape irrigation Extend the life of water pipes, appliances, and Consider whether a water softener is even equipment needed in your household; you might be able to Once salt is in the water, it is diffi cult Preserve water quality for potential re-use (high go without your softener and avoid the ongoing salinity levels limits water resource management expenses for its operations and maintenance to remove and expensive to treat. options and the ability to use reclaimed water in the Consider other alternatives to salt-based water future) softeners Don’t Pass the Salt! WATER SOFTENER $AVINGS! You can save money on softener salt, electricity, and water by not operating your water softener as frequently. We need your help to reduce salt levels in Farmington’s 800 Municipal Dr. Farmington, NM 87401 wastewater 505-327-7701.
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