Metered residential water customers could apply for a Haines Borough summertime sprinkler allowance following adoption of an ordinance set for a second public hearing Tuesday.

Under the sprinkler allowance, amounts of use in excess of 4,000 gallons per month per unit between June 1 and Aug. 31 will charged at fifty percent of the metered usage.

The allowance is of interest to residents formerly served by Crystal Cathedrals Water and Sewer System, whose water use is metered. Most residents in the townsite have unmetered water usage.

“(The allowance) is only for wastewater, for sewage that is presumed not to be entering the sewer treatment facility or the system,” said borough manager Mark Earnest. “It gives a discount based on averages for sewer only, not for water consumption.”

Earnest said the sprinkler allowance was in place during private ownership of Crystal Cathedrals. “There was a request for that to continue.”

According to the ordinance, the purpose of the sprinkler allowance “is to make an adjustment for the metered usage based upon water meter registers where not all the water used is collected and treated by the sewer system.”

“We don’t meter sewage; we meter the water and it’s presumed that the amount of water used is the amount of sewage that is produced,” Earnest said. “The borough does make exceptions for this, and this is for metered utilities.”