b'Largest Wastewater/Sewer Systems City of Pocatello Water Pollution Control Plant (10733 N Rio Vista Rd) Over 250 miles of sewers, 23 pump stations City of Chubbuck Shares use of Pocatellos Water Pollution Control Plant City of InkomSewage lagoons (N Old Hwy 91) Highest number of water quality violations in the stateIrrigation Portneuf Marsh Valley Canal Co Ltd (8290 acres) Portneuf Irrigating Co (8102 acres) Marsh Center Irrigating Co (4726 acres) McCammon Ditch Co Ltd (4547 acres) Garden Creek Irrigation Co (2852 acres) Dempsey Irrigating Co; Topaz Irrigation Co (2640 acres) Lava Irrigation Co Ltd (977 acres) Fish Creek Irrigating Co (352 acres) East Side Ditch Co (64 acres)Acres irrigated: 22,2094166 I D A H O I N F R A S T R U C T U R E G U I D E B O O K'