Section Env-Ws 381.17 - Number of Lead and Copper Samples(a) A system owner shall collect at least one sample during each monitoring period as specified in Env-Ws 381.18 from the number of sites listed in the "standard monitoring" column in Table 381-1.(b) A system owner conducting reduced monitoring during each monitoring period under Env-Ws 381.21 shall collect one sample from the number of sites specified in the "reduced monitoring" column of Table 381-1: Table 381-1
Number of Required Sampling Site
| System Size | Number of sites | Number of sites |
| (Number of People Served) | (Standard Monitoring) | (Reduced Monitoring) |
| >100,000 | 100 | 50 |
| 10,001 - 100,000 | 60 | 30 |
| 3,301 - 10,000 | 40 | 20 |
| 501 - 3,300 | 20 | 10 |
| 101 - 500 | 10 | 5 |
| less than or equal to-100 | 5 | 5 |
(c) The samples collected pursuant to (b) above, shall be representative of the sites required for standard monitoring.(d) The owner of a non-transient non-community or a community water system that does not have enough taps that can supply first-draw samples, may submit a written request to the department to substitute non-first-draw samples.(e) The written request shall: (1) Identify the water system name;(2) Identify the water system EPA identification number;(3) Explain why there is an insufficient number of first-draw samples; and(4) Identify the number and the location of the non-first draw samples the system intends to collect.(f) The department shall respond to the written request in writing and shall approve the request if it finds that the alternatives proposed are representative of first-draw sampling sites.(g) The system owner in (d) above, shall collect as many first-draw samples from appropriate taps as possible and identify sampling times and locations that would likely result in the longest standing time for the remaining sites.N.H. Admin. Code § Env-Ws 381.17
(See Revision Note at chapter heading for Env-Ws 300) #6521, eff 6-4-97, ss by #7734, eff 8-2-02