WHUD calculates sewer usage based on your monthly water use. To account for outdoor uses that may not impact the sewer system, we use an “averaging program” from April through October each year. This program prevents our residential customers from paying sewer charges on additional watering (irrigating, swimming pools, etc.) that commonly take place during this time period and is not returned to the sewer system.
Averages are based on water usage from November through March, excluding the highest and lowest months. Customers are not charged over that amount for sewer billing while the program is in effect. Averages are automatically calculated each year, and new customers without usage history will be set up on an average of 5,000 gallons the first year.