Nebraska Administrative Code
Topic - HEALTH AND HUMAN SERVICES SYSTEM
Title 179 - PUBLIC WATER SYSTEMS
Chapter 19 - LONG TERM 1 (LT 1) ENHANCED SURFACE WATER TREATMENT (for Systems Serving Fewer Than 10,000 People)
Section 179-19-011 - REPORTING AND RECORDKEEPING REQUIREMENTS
Current through September 17, 2024
011.01 The following table lists the items that must be reported and the frequency of reporting. Systems subject to the specific requirement shown in the first column are required to report the information that follows.
|
Corresponding Requirement |
Description of Information to Report |
Frequency |
|
a. Combined Filter Effluent Requirements (179 NAC 19-009.01 to 19-009.04) |
1. The total number of filtered water turbidity measurements taken during the month. 2. The number and percentage of filtered water turbidity measurements taken during the month which are less than or equal to the system's required 95th percentile limit. 3. The date and value of any turbidity measurements taken during the month which exceed the maximum turbidity value for your filtration system. |
By the 10th of the following month. By the 10th of the following month. By the 10th of the following month. |
|
b. Individual Turbidity Requirements (179 NAC 19-010.01 to 19-010.05) |
1. That the system conducted individual filter turbidity monitoring during the month. 2. The filter number(s), corresponding date(s), and the turbidity value(s) which exceeded 1.0 NTU during the month, and the cause (if known) for the exceedence(s), but only if two consecutive measurements exceeded 1.0 NTU. 3. If a self-assessment is required, the date that it was triggered and the date that it was completed. 4. If a CPE is required, that the CPE is required and the date that it was triggered 5. Copy of completed CPE report |
By the 10th of the following month. By the 10th of the following month. By the 10th of the following month (or 14 days after the self-assessment was triggered only if the self-assessment was triggered during the last four days of the month). By the 10th of the following month. Within 120 days after the CPE was triggered. |
|
c. Disinfection Profiling (179 NAC 19-007.01 to 19-007.07) |
1. Results of optional monitoring which show TTHM levels < 0.064 mg/L and HAA5 levels < 0.048 mg/L (Only if your system wishes to forgo profiling) or that your system has begun disinfection profiling. |
(i) For systems serving 500 -9,999 by July 1, 2003; (ii) For systems serving fewer than 500 by January 1, 2004. |
|
d. Disinfection Benchmarking (179 NAC 19-008.01 to 19-008.05) |
1. A description of the proposed change in disinfection, your system's disinfection profile for Giardia lamblia (and, if necessary, viruses) and disinfection benchmark, and an analysis of how the proposed change will affect the current levels of disinfection. |
Any time your system is considering a significant change to its disinfection practice. |
011.02 Required Recordkeeping
Systems must keep several types of records based on the requirements of 179 NAC 19, in addition to recordkeeping requirements under 179 NAC 13-008. The following table describes the necessary records, the length of time these records must be kept, and the requirement for which the records pertain. Systems are required to maintain records described in this table, if the system is subject to the specific requirement shown in the first column.
|
Corresponding Requirement |
Description of Necessary Records |
Duration of Time Records Must Be Kept |
|
a. Individual Filter Turbidity Requirements (179 NAC 19-010.01 to 19-010.05) |
Results of individual filter monitoring |
At least 3 years |
|
b. Disinfection Profiling (179 NAC 19-007.01 to 19-007.07) |
Results of profile (including raw data and analysis) |
Indefinitely |
|
c. Disinfection Benchmarking (179 NAC 19-008.01 to 19-008.05) |
Benchmark (including raw data and analysis) |
Indefinitely |
