11/15/2022 0 Comments Sewer run android![]() ![]() Service leaks also keep crews busy with as many as a dozen leaks recently reported in a two-week period. This spring our team also clamped some pipes with holes as big as softballs caused by a combination of corrosion and pressure fluctuations.” “Our crews are all hardworking, and even after a couple of bad winters where the temperature dropped to less than 10 below zero I never heard them complain. “We see a lot of repairs in the winter - usually ring breaks caused by the freeze-thaw cycle,” says Sadler. The team is outfitted with Pollard Geophones to narrow down the sources of leaks. Some of our replacement pipe is PVC, but our material of preference is ductile iron.”Ī seven-member operations and maintenance team fixes main breaks, repairs water leaks, and taps water mains for new developments. “Our oldest water pipe, pre-World War II vintage, is sand-cast iron. “We cleared out the last short segments of wooden water mains 20 years ago,” Sadler says. ![]() The water distribution system measures 98 miles in length with pipe diameters ranging from 2 up to 24 inches for the largest transmission mains. The parallel system also allows us to run a treatment loop in series in case anything toxic gets into the treatment stream.” “Even though our National Pollutant Discharge Elimination System (NPDES) permit is rated for 7 mgd, we can now handle as many as 21 mgd for a short period of time. “We eliminated hydraulic bottlenecks through more efficient piping and created a parallel treatment system,” says Will Sadler, director of the Adrian Utilities Department. The city operates the 2-million-gallon above-ground Winter Street retention basin as an insurance policy, but a unique solution provides extra value for ratepayers. While the wastewater treatment plant is rated at 7 mgd, extreme wet-weather flows can send as much as 20 mgd into the system. The city operates a 10 mgd water treatment plant, which primarily serves city residents, and a wastewater treatment plant, which also serves adjoining Madison and Adrian Charter townships. Customers are supplied with a blend of surface water from Lake Adrian and groundwater from four wells. Its Utilities Department is responsible for both water and wastewater services. Its Utilities Department continues to take on the city’s toughest infrastructure challenges - including the $3 million rehabilitation and replacement of its 19th-century brick arch sewer - while holding the line on utility rate increases.Īdrian is located 70 miles southwest of Detroit. Get Rehab/Relining articles, news and videos right in your inbox! Sign up now.Īdrian, Michigan, is a city of a little more than 20,000 with a can-do attitude. ![]()
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