N.J. Admin. Code § 8:26-7.17

Current through Register Vol. 56, No. 21, November 4, 2024

Section 8:26-7.17 - Sampling techniques for bathing beaches

(a) The water sampling techniques set forth at N.J.A.C. 8:26-7.3(d) and below shall be used for bathing beaches:

1. Water samples shall be taken in an area with a stabilized water depth between the sampler's lower thighs and chest with the optimum depth being at the sampler's waist. For deep water or shallow bays where this type of sample collection is not practicable or presents a potential safety concern for the sampler, the health authority shall determine the stabilized water depth. In all cases the sampler must meet the requirements of (a)2 to 4 below.

2. A wide-mouth sample container shall be placed approximately eight to 18 inches below the water surface with the lid and stopper still attached.

3. With the collector's arms extended to the front, the container shall be held near its base and downward at a 45-degree angle. The cap shall be removed and the container filled in one slow sweeping motion (downward or horizontally, not upward). The mouth of the container shall be kept ahead of the collector's hand and the container recapped while it is still submerged. The cap shall remain submerged during the sample collection and care shall be taken not to touch the inner surfaces of the cap.

i. In the event that samples need to be taken during cold water conditions or in other appropriate situations, reach assist poles shall be used to obtain the samples. In this situation, the cap may be removed prior to submersion as long as the container is pointed downward upon entry into the water.

4. A one-inch head space is required for all microbiological samples collected. After capping the sample container and mixing the sample (approximately 25 times at a one-foot arc), the sampler can carefully pour out a small amount of the sample and recap the sampling container to obtain the required head space.

(b) Sampling shall not be performed when oceanographic and/or meteorological conditions unreasonably threaten the safety of the sampling personnel or the integrity of the sample.

N.J. Admin. Code § 8:26-7.17

Amended by 50 N.J.R. 481(b), effective 1/16/2018