Town of Herndon, VA
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Potential causes of high water bills
An unusually high water bill is most often caused by a leak or change in water use. Some common causes of high water bills include:
• Leaking toilet, or a toilet that continues to run after being flushed (see additional information below)
• A dripping faucet; a faucet drip can waste 20 gallons of water a day or more
• Filling or topping off a swimming pool
• Watering the lawn, new grass, or trees; also check for an open hose bib
• Kids home for summer/winter vacations, school holidays, snow days; guests
• Water-cooled air conditioners
• A broken water pipe or obvious leak; check the pipes in the basement or crawlspace; the water heater could also be leaking
• Water softener problems - cycles continuously
• Running the water to avoid freezing water pipes during cold weather
Generally, water consumption is higher during the summer due to watering of lawns, pools, and gardening. Typically, an average family of four uses 7,000 ‐ 8,000 gallons of water a month.