Nebraska Administrative Code
Topic - HEALTH AND HUMAN SERVICES SYSTEM
Title 179 - PUBLIC WATER SYSTEMS
Chapter 26 - REVISED TOTAL COLIFORM RULE
Section 179-26-008 - ROUTINE MONITORING REQUIREMENTS FOR PUBLIC WATER SYSTEMS SERVING MORE THAN 1,000 PEOPLE

Universal Citation: 179 NE Admin Rules and Regs ch 26 ยง 008

Current through September 17, 2024

008.01 General

26-008.01A The provisions of this section apply to public water systems serving more than 1,000 persons.

26-008.01B Following any total coliform-positive sample taken under the provisions of this section, systems must comply with the repeat monitoring requirements and E. coli analytical requirements in 26-009.

26-008.01C Once all monitoring required by this section and 26-009 for a calendar month has been completed, systems must determine whether any coliform treatment technique triggers specified in 26-010 have been exceeded. If any trigger has been exceeded, systems must complete assessments as required by 26-010.

26-008.01D Seasonal Systems
26-008.01D1 Beginning April 1, 2016, all seasonal systems must demonstrate completion of a Department-approved start-up procedure, which may include a requirement for start-up sampling prior to serving water to the public.

26-008.01D2 The Department may exempt any seasonal system from some or all of the requirements for seasonal systems if the entire distribution system remains pressurized during the entire period that the system is not operating.

008.02 Monitoring Frequency for Total Coliforms

The monitoring frequency for total coliforms is based on the population served by the system, as follows:

TOTAL COLIFORM MONITORING FREQUENCY FOR PUBLIC WATER SYSTEMS SERVING MORE THAN 1,000 PEOPLE

Population Served

Minimum Number of Samples per Month

1,001 to 2,500

2

2,501 to 3,300

3

3,301 to 4,100

4

4,101 to 4,900

5

4,901 to 5,800

6

5,801 to 6,700

7

6,701 to 7,600

8

7,601 to 8,500

9

8,501 to 12,900

10

12,901 to 17,200

15

17,201 to 21,500

20

21,501 to 25,000

25

25,001 to 33,000

30

33,001 to 41,000

40

41,001 to 50,000

50

50,001 to 59,000

60

59,001 to 70,000

70

70,001 to 83,000

80

83,001 to 96,000

90

96,001 to 130,000

100

130,001 to 220,000

120

220,001 to 320,000

150

320,001 to 450,000

180

450,001 to 600,000

210

600,001 to 780,000

240

780,001 to 970,000

270

970,001 to 1,230,000

300

1,230,001 to 1,520,000

330

1,520,001 to 1,850,000

360

1,850,001 to 2,270,000

390

2,270,001 to 3,020,000

420

3,020,001 to 3,960,000

450

3,960,001 or more

480

008.03 Unfiltered Surface Water and Ground Water Under the Direct Influence of Surface Water Systems

A surface water or ground water under the direct influence of surface water system that does not practice filtration in compliance with 179 NAC 13, 17, 19 and 25 must collect at least one total coliform sample near the first service connection each day the turbidity level of the source water, measured as specified in 179 NAC 13-007.02B, exceeds 1 NTU. When one or more turbidity measurements in any day exceed 1 NTU, the system must collect this coliform sample within 24 hours of the first exceedance, unless the Department determines that the system, for logistical reasons outside the system's control, cannot have the sample analyzed within 30 hours of collection and identifies an alternative sample collection schedule. Sample results from this coliform monitoring must be included in determining whether the coliform treatment technique trigger in 26-010 has been exceeded.

008.04 Reduced Monitoring

Systems may not reduce monitoring, except for non-community water systems using only ground water (and not ground water under the direct influence of surface water) serving 1,000 or fewer people in some months and more than 1,000 persons in other months. In months when more than 1,000 persons are served, the systems must monitor at the frequency specified in 26-008.02. In months when 1,000 or fewer people are served, the Department may reduce the monitoring frequency, in writing, to a frequency allowed under 26-005 for a similarly situated system that always serves 1,000 or fewer people, taking into account the provisions in 26-005.05 through 26-006.

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