(A) Inspections. The inspection and sampling of the individual industries will entail the following:
(1) Randomly select an industry for investigation;
(2) Visit the plant site to verify the correctness of existing information;
(3) Locate the sampling manhole;
(4) Set up an automatic sampler or samplers along with flow measuring devices, if necessary;
(5) Label samples and transport to laboratory for analysis; and
(6) The town shall provide the following:
(a) “Split samples” with the discharger of any samples collected;
(b) A list of all analysis to be completed; and
(c) A written report of analytical results within 15 days of the sample collection.
(B) Sampling. The industries will be sampled once annually on the average. In addition to the regularly scheduled samplings, the industrial waste division will also conduct a random “grab sampling” program to ensure that the pretreatment facilities are being utilized at all times.
(C) Self-monitoring. Self-monitoring by all industries shall be determined by their applicable discharge standards. Industries shall sample their outlets according to the schedule presented below and report the values in the semi-annual report. If an industry sufficiently demonstrates the absence of toxic pollutants in its discharge, an exemption may be granted. The type of analysis for each business shall be determined by the town.
Industrial Analysis Schedule | |
Daily Water usage (gpd) | Frequency of Analysis |
1,000 | Annually |
1,000—10,000 | Quarterly |
10,000—50,000 | Bi-monthly |
50,000—250,000 | Monthly |
250,000 | Bi-weekly |
(D) Monitoring facilities.
(1) Each discharger shall provide, at the discharger’s own expense, a monitoring facility as described in division (C) above, to allow inspection and sampling of each sewer discharge to the town. Each monitoring facility shall be situated on the discharger’s premises, except where such a location would be impractical or cause undue hardship on the discharger, the town may concur with the facility being constructed in the public street or sidewalk area providing that the facility is located so that it will not be obstructed by landscaping or parked vehicles.
(2) Monitoring shall commence within 90 days of receipt of the permit by the discharger.
(1991 Code, § 50.45)