(A) The user shall not discharge such wastewater to the POTW without prior written approval of the control authority, where a user has a wastewater discharge that contains true color from any source and of any hue:
(1) With less than the equivalent luminescence and greater than the equivalent purity of a 500 unit platinum-cobalt stock standard, as determined by the spectrophotometric* or tristimulus* methods. Equivalent values shall be determined at the dominant wavelength of the sample and compared to the values determined at the dominant wavelength of the stock standard. (*Analysis shall be performed at ambient (as received) pH only.);
(2) That is not removed in the POTW process; or
(3) That causes the plant effluent to have a true color in excess of 100 units on the platinum-cobalt scale, or its equivalent.
(B) Where a user does not meet division (A)(1) above and does meet divisions (A)(2) and (A)(3) above, he, she or it may apply, in writing, to the control authority to discharge wastewater with higher color unit values. Should the control authority approve such a discharge, the user shall monitor his, her or its discharge in a manner established by the control authority. Approval will be in writing by the EAJSA in the form of a permit modification. Failure to monitor in a manner established by the authority or exceeding the higher interim limit established by the authority shall subject the user to the regulations of the control authority as set out in Chapter 54 of this code of ordinances.
(C) Where the control authority observes any visible color in its influent flow, it shall have the right to issue an administrative order to any or all users, at its sole discretion, to reduce the color of their discharge to limits established in division (A)(1) above within seven days of written notification.
(D) Where in the sole judgement of the control authority, wastewater or wastewaters with sufficient color are being discharged which is not being removed in the POTW process and causes the plant effluent to have a true color in excess of 100 units on the platinum-cobalt scale, the control authority reserves the right to reduce the color unit limit as described in division (A)(1) above to a lower value and shall require all users to comply with these new limits within 30 days of notification. Failure to comply shall subject the user to the regulations of the control authority as set out in Chapter 54 of this code of ordinances.
(Ord. 197, passed 11-4-2002)