Section 179-19-006 - ADDITIONAL WATERSHED CONTROL REQUIREMENTS FOR UNFILTERED SYSTEMS006.01 Systems using surface water or ground water under the direct influence of surface water that serve fewer than 10,000 persons and do not provide filtration must continue to comply with all the filtration avoidance criteria in 179 NAC 13-004, as well as the additional watershed control requirements in 179 NAC 19-006.02.006.02 Systems must take any additional steps necessary to minimize the potential for contamination by Cryptosporidium oocysts in the source water. Watershed control programs must, for Cryptosporidium:1. Identify watershed characteristics and activities which may have an adverse effect on source water quality; and2. Monitor the occurrence of activities which may have an adverse effect on source water quality.006.03 During an onsite inspection conducted under the provisions of 179 NAC 13-004.03, the Director must determine whether your watershed control program is adequate to limit potential contamination by Cryptosporidium oocysts. The adequacy of the program must be based on the comprehensiveness of the watershed review; the effectiveness of the system's program to monitor and control detrimental activities occurring in the watershed; and the extent to which the system has maximized land ownership and/or controlled land use within the watershed.179 Neb. Admin. Code, ch. 19, § 006