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 June 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