US EPA ON INTRUSION PROBLEMS. Low or negative water pipe pressures, especially below the water table, result in up to 50% of the pipes being contaminated with fecal bacteria and viruses from outside the distribution system (a study of 8 facilities in 6 US states).
http://lnkd.in/dduVeJq
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022