[HISTORY: Adopted by the Board of Health of the Town of Eastham 5-26-2005, effective 7-1-2005. Amendments noted where applicable.]
Provisions for final or ultimate disposal of sludge and solids shall be in a manner approved by the Board of Health, prior to the issuance of any Board of Health permit. The estimated quantity must be stated. If sludge and solids are to be disposed of off site, the final destination must be established prior to issuance of any permit. The applicant must demonstrate to the satisfaction of the Board of Health that the destination for the sludge and solids is in compliance with all applicable federal, state and local regulations and also that it will reliably be available for such purpose for the length of time that its use is required by the SWWTP. On-site dewatering of sludge is prohibited.
The SWWTP shall be planned and designed so as to provide maximum reliability at all times. The facility shall be capable of operating satisfactorily during power failures, reduced power periods, peak loads, flooding, equipment failure and maintenance shutdowns.
The Board of Health shall receive a written certification from the engineer and/or equipment supplier that the SWWTP is capable of meeting all effluent limits.
Following completion of the SWWTP the manufacturer shall review and certify in writing to the Board of Health that the equipment installed is capable of providing the treatment level required.
Multiple units or dual compartments with unit drains shall be required for all processes, including disinfection facilities, so that draining, cleaning, repairing, replacing or other maintenance can be provided without omitting any treatment processed in zones of contributions, recharge or watershed areas, or other sensitive areas as determined by the Board of Health.
The SWWTP must be constructed with a standby generator with an automatic transfer switch to minimize downtime during a power outage when the operator may not be able to reach the plant at the time the outage occurs. The generator must be sized to power any remote pump stations tributary to the plant, or a portable pump must be provided.
All alarm functions shall be wired to a bell or horn and light at a continually monitored manned location. The alarm shall be wired to remain on until the problem is corrected.
Sufficient space must be provided for an on-site laboratory large enough to conduct routine analyses not contracted for with a private laboratory. Plant design shall allow for easy equipment removal if necessary and large items need to be removed for repair/replacement. Sufficient space must be provided around all process units to facilitate access for maintenance purposes. Additional space will be provided for the possibility of expanded wastewater flow and/or the need for treatment upgrading at any future time.
No bypasses, either upstream of or at the SWWTP, shall be permitted.
The SWWTP must be designed and constructed to allow for the disinfection of the SWWTP effluent by ultraviolet irradiation or ozonation. The use of disinfection equipment shall be determined by the Board of Health.
The SWWTP must be provided with adequate ventilation, and plans for the facility must fully address this issue.
The SWWTP must be designed and constructed to per second at 75% of the estimated peak discharge. For low-service connection areas, peak flow rate shall be calculated by the fixture unit method as described in MOP #9. The minimum pipe size allowed shall be eight inches in diameter.
The permittee shall install, at a minimum, groundwater monitoring wells in accordance with the following:
One up-gradient cluster of three monitoring wells.
Two down-gradient clusters of three monitoring wells each.
One monitoring well for groundwater level only near the center of the leaching works.
Screen depths for the cluster wells shall be set at elevations such that at least two screen depths will yield samples at time of seasonal low groundwater (e.g., September sampling period).
Such locations shall be approved by the Board of Health and as indicated appropriate from the results of the hydrogeological investigation. Monitor wells shall be installed and in place prior to issuance of the certificate of compliance and annual operations permit. Additional monitoring wells or requirements may be required at the discretion of the Board of Health.
Groundwater elevation. The permittee shall determine and provide the Board of Health, in continuous graph form, with elevations of the water table to the nearest 1/100 of a foot in all monitor wells on a monthly basis, along with the current separation distance between the bottom of the leaching facility and the water table.
Effluent limitations shall be required by DEP regulations for Class I groundwaters. All groundwaters are considered to be in this classification unless proved to be otherwise following procedures set forth by DEP. However, in no case shall the SWWTP effluent have nitrogen concentration greater than 40 parts per million total Kjeldahl nitrogen; nor shall the total annual Kjeldahl nitrogen of the effluent exceed 40 pounds per acre served (total area of all lots served by the SWWTP), or 18.2 kilograms Kjeldahl nitrogen per acre served.
Treatment plant effluent.
Groundwater monitor wells.
Monitor well testing in the up-gradient and down-gradient wells shall be performed semiannually in the months of April and September for all parameters designated above as semiannually, monthly, weekly or daily. Testing for other parameters shall occur during the month of April at the stated frequency.
On an annual basis, the Board of Health, or upon written request from the permittee, may review the sampling frequency and the tested parameters and may modify either or both if it deems it necessary.
Operator. A certified wastewater treatment plant operator having the grade appropriate for the plant shall be retained by the permittee. Such operator shall spend a minimum of three hours per day at the plant. When conditions warrant as may be determined by the Board of Health, additional hours shall be required. Such operator shall be designated as the Chief Operator and shall be responsible for the operation of the SWWTP. The Board of Health shall receive a copy of the responsible party's contract with the operator.
A second certified wastewater treatment plant operator having the grade appropriate for the plant shall be retained by the permittee. Such operator shall spend a minimum of three hours per day at the plant. When conditions warrant as may be determined by the Board of Health, additional hours shall be required. Such operator shall be designated as the Chief Operator and shall be responsible for the operation of the SWWTP. The Board of Health shall receive a copy of the responsible party's contract with the operator.
A second certified wastewater treatment plant operator, having the same grade as the Chief Operator, shall be available in the absence of the Chief Operator. The Board of Health shall receive a copy of the responsible party's contract with the backup operator.
If any part or portions of these regulations be adjudicated as invalid, the adjudication shall apply only to the material so adjudged, and the remaining rules and regulations shall be deemed valid and in full force and effect.