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The City reserves the right to amend these rules and regulations to provide for more stringent limitations or requirements on discharges to the City's POTW where deemed necessary to comply with the objectives set forth in Section 915.004 or to assure compliance by the City with applicable laws and regulations.
(Ord. 30-14. Passed 3-3-14.)
Users subject to the reporting requirements of these rules and regulations shall retain, and make available for inspection and copying, all records of information obtained pursuant to any monitoring activities required by these rules and regulations, any additional records of information obtained pursuant to monitoring activities undertaken by the user independent of such requirements, and documentation associated with Best Management Practices established under Section 915.103(b). Records shall include the date, exact place, method, and time of sampling, and the name of the person(s) taking the samples; the dates analyses were performed; who performed the analyses; analytical techniques or methods used; and the results of such analyses. These records shall remain available for a period of at least three (3) years. This period shall be automatically extended for the duration of any litigation concerning the user or the City, or where the user has been specifically notified of a longer retention period by the Director.
(Ord. 30-14. Passed 3-3-14.)
Every user whose premises are served by a sanitary sewer connection and discharges wastes other than "normal sewage" into the sewerage system of the City shall be charged and shall pay a sewage surcharge in addition to the sewage service charge for "normal sewage".
(Ord. 30-14. Passed 3-3-14.)
The City shall claim surcharges on discharges whether continuous, batch, or accidental spill based on a grab sample or twenty-four hour composite sample. The surcharge shall be assessed for that particular twenty-four hour period. Where a user is continually discharging waste to the sewer system, surcharges shall be based on an average of all tests collected during the surcharge period. The surcharge period is three months. The results of routine sampling and analysis by the user may be used in addition to City data in determining surcharge computations after being confirmed by tests performed by the City. (Ord. 30-14. Passed 3-3-14.)
If user has multiple outlets, and an analysis is presented for each, based upon individual sampling and flows, the results can be combined into one analysis and the average strength of the wastes and flows shall be used in establishing the sewage surcharge. Where flow measurements are determined by the Director to be impractical, outlet concentrations shall be arithmetically averaged. (Ord. 30-14. Passed 3-3-14.)
For the purposes of calculating the surcharge, flow shall be based on the total effluent flow from an industrial user. Total effluent flow will be estimated using water meter readings unless the flow rate of a particular effluent has been measured. No allowance will be given for cooling water or multiple outlets. The additional cost to collect flow monitoring data is the responsibility of the industrial user. (Ord. 30-14. Passed 3-3-14.)
In the event that a user fails to make available a sampling location to City personnel, as required in Section 915.308, then such user shall be charged according to comparable charges, based on chemical analyses of a similar process, or on figures on that type of industry that are available from statistics of the United State Department of Interior, Ohio Environmental Protection Agency, or other recognized sources acceptable to the City of Lorain, Water Pollution Control Board. This method of applying the surcharge shall continue in effect until such time as an analysis of the wastes is submitted by the facility and confirmed by the City.
(Ord. 30-14. Passed 3-3-14.)
(a) The surcharge shall be based on four constituents of the water or wastes applicable:
(1) Total Suspended Solids
(2) BOD
(3) COD
(4) Phosphorus
(b) Whenever the wastes are ruled acceptable to wastewater treatment and the wastewater contains suspended solids, BOD, and/or COD, or phosphorus in excess of "normal sewage", the excess shall be subjected to surcharge derived in accordance with the following formulae:
(1) SCS = (TSS-280) x F X 8.34 x CS
SCS = Surcharge due to total suspended solids.
TSS = Total suspended solids in wastes as discharged in mg/1
280 = Suspended solids concentration in "normal sewage" in mg/1
F = Flow in millions of gallons per day of wastes as discharged.
CS = Cost to treat one pound of suspended solids in cents per day per pound.
(2) SCB = (BOD-240) x F x 8.34 x CB
SCB = Surcharge due to excess BOD
BOD = Total BOD in wastes as discharged in mg/1.
240 = BOD concentration in "normal sewage" in mg/1.
CB = Cost to treat one pound of BOD in cents per pound per day.
Or
SCC = (COD-500) x F x 8.34 x CC
SCC = Surcharge due to excess COD
COD = Total COD in wastes as discharged in mg/1.
500 = COD concentration in "normal sewage" in mg/1.
CC = Cost to treat one pound of COD in cents per pound per day.
(3) SCP = (P-8) X 8.34 X F X CP
SCP = Surcharge due to excess phosphorus.
P = Total phosphorus in wastes as discharged in mg/1.
8 = Total phosphorus concentration in "normal sewage" in mg/1.
F = Flow in millions of gallons per day.
CP = Cost to treat one pound of phosphorus in cents per pound per day.
(Ord. 30-14. Passed 3-3-14.)
Whenever a waste cannot be analyzed by a BOD test, the COD result shall prevail in calculating the surcharge, Whenever both testing methods are possible, the Director shall determine which analysis shall apply in computing the surcharge based on which will provide the higher surcharge. (Ord. 30-14. Passed 3-3-14.)
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