The distribution system of Northwest Suburban Municipal Joint Action Water Agency (NSMJAWA), Elk Grove
Village, Illinois is a fairly simple system, consisting primarily of a single loop. The distribution system
mains are of a large diameter and operate under relatively high pressure. In many cases, sections of main represent sole source
supplies to the customers. Much of the distribution system underlies or runs adjacent to
infrastructure the disruption of which would be unacceptable. A number of corrosion mitigation options were considered to correct known corrosion
problems on the NSMJAWA distribution system. Cathodic protection (CP) appeared to be the best answer in this case. Some of the reasons CP was chosen included the ability to install or apply the protective
measures at discreet locations which could be selected for ease of installation and minimal impact on surrounding
facilities and land use. CP also did not require excavation of the
pipeline, other than at isolated locations. CP could be applied without
taking the pipelines out of service, and perhaps most importantly, the design
engineer had included provisions in the original system design which simplified
the later installation of CP. This paper describes
NSMJAWA's distribution system and corrosion problems and explores
the reasons behind the selection of cathodic protection to solve these corrosion
issues. Lessons learned during this process are also discussed. Includes 6 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 2.6 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 14 |
| Published : | 01/01/2000 |
