Attachment_1C_Bombay_Hook_Waste_Water_Permit_245166.pdf

PERMIT

245166

Tax Parcel Number: DC-00-031.00-01-01.00.000

Site Evaluation Number: 563669

Pursuant to provisions of Title 7, Delaware Code, Chapter 60, permission is hereby granted to:

Bombay Hook Wildlife Refuge

2591 Whitehall Neck Road, Smyrna, DE 19977 US to construct, operate and maintain an onsite wastewater system.

Construction must be completed on or before 07/08/2023 , two years from permit issuance date. Construction must be performed by a person duly licensed by Delaware DNREC for such activity.

All current regulations governing wastewater system installation shall be followed.

All attached permit conditions shall be complied with.

The applicant is responsible for obtaining all additionally required permits and approvals.

7/8/2021

AUTHORIZED SIGNATURE Date

Tax Parcel Number: DC-00-031.00-01-01.00.000

Site Evaluation Number: 563669

Conditions for both Owner and Contractor

§ 1 This system MUST be installed/repaired by a licensed Class E System Contractor. The Contractor must call the Ground Water Discharges Section (GWDS) at (302) 739-9947 in Kent and New Castle Counties and (302) 856-4561 in Sussex County for system construction start-up authorization. The Contractor must call the GWDS for this authorization 24 hours prior to system construction start for Standard and I/A Systems and 72 hrs. prior for Large Systems. The Contractor must have an DNREC-approved permit copy on site during construction of this system.

§ 5 Connections and/or additions to the system other than what are proposed on the approved plot plan

(s) are prohibited without prior approval from the Ground Water Discharges Section (GWDS).

§ 6 Roof downspouts, foundation drains, storm sewers, combined sewers or appurtenances thereto, or any sewer or device carrying or discharging either storm, surface, ground or cooling water, oil or water softener discharge shall not be connected to the system.

§ 20 The average daily discharge of this system is restricted to 1400 gallons per day. Changes to permitted system flow must be pre-approved by the GWDS and may require a new permit(s) to be issued.

§ 23 A Certificate of Satisfactory Completion must be issued by the GWDS for this system prior to its use. The system is NOT approved for operation and maintenance until the required certificate has been issued.

§ 70 If the approved disposal area is wooded, at the discretion of the Class E System Contractor, it is recommended that after tree-clearing the disposal area be checked again by a Class D Soil Scientist prior to system installation. Refer to the Regulations for lot clearing guidance and Exhibit FF for Lot Clearing/Disturbed Site Inspection Report.

§ 90 It is the responsibility of the Class E System Contractor, with cooperation of the property owner, to establish and make visible all property corners that define the property boundaries prior to system installation/inspection. Failure to comply with this condition may necessitate additional Inspection(s) and delay subsequent site approval.

§ 94 The proposed/existing septic tank(s) must be upgraded with risers(2) for each compartment finished to above grade and a GWDS-approved outlet filter. The above-grade access covers shall be watertight and secure from vandalism. The outlet filter should be removed, inspected, cleaned and replaced per manufacturer's recommendations.

Conditions for Contractor

§ 3 The Class E System Contractor shall notify the Class C Design Engineer for an inspection prior to covering the installation. Approval to cover must be given by the Engineer/Authorized Designee. The Engineer shall provide As-Built drawings within ten (10) days after system inspection (if required).

§ 7 The drainfield area, either above or below grade, must be installed according to the cross section in the permit design plan(s). Any changes to system depth/height will require pre-approval from the Class D Soil Scientist, the Class C Design Engineer (if applicable) and the GWDS.

§ 10 All electrical connections shall be waterproof, corrosion-resistant and explosion proof where applicable. All electrical connections and components utilized in an OWTDS, at a minimum, must comply with all National and Delaware Electrical Codes (Admin Code, Title 24, §1400) per Section

5.4.6.2.1.5 of the regulations.

§ 12 There shall be no soil disturbance within the primary and spare absorption areas except the minimum required for system/component installation and/or repair.

Tax Parcel Number: DC-00-031.00-01-01.00.000

Site Evaluation Number: 563669

§ 13 The existing sewage disposal system drainfield and/or components shall be abandoned as required in Section 5.4.8 of the Regulations. Unless the existing tank(s), septic, dosing and/or lift, are incorporated into a replacement system design any tank(s), all cesspool(s)/seepage pit(s) and/or disposal areas as shown or indicated on the permit plot plan shall be located, pumped and either filled or removed/backfilled and an Abandonment Report (exhibit "Z") submitted.

§ 14 If the existing sewage disposal system is encountered during excavation and the proposed new system is not designed to be sand-lined, STOP construction and contact the Class B or C Designer/Engineer and the GWDS.

§ 24 It is the responsibility of the Class E System Contractor to verify that ALL isolation distances, as noted and approved in the permit, can be maintained. Furthermore, the contractor shall notify the Class B or C Designer/Engineer AND the GWDS if field conditions exist that prohibit the ability to maintain the approved isolation distances and/or requirements of the Regulations.

§ 30 The existing septic tank(s) must be replaced. The replacement tank(s) must have a minimum capacity of 1500 gallons and meet all requirements for septic tanks as set forth in the Regulations. The Class E System Contractor is required to abandon the existing septic tank in accordance with Section

5.4.8 of the DNREC Regulations and submit an Abandonment Report(exhibit "Z").

§ 33 This system must be pressure-tested by a Class C Engineer/Authorized Designee.

§ 48 Final Site Restoration must comply with Section 5.4.5.5 of the Regulations Governing the Design, Installation and Operation of On-Site Wastewater Treatment and Disposal Systems.

§ 66 A construction report must be prepared by the Class E System Contractor and submitted to the GWDS within ten (10) days of system completion. This is to include any changes that require a post-construction "As-Built" drawing. "As-Built drawings detailing changes to engineered(pressurized) systems must be submitted by the Class C Engineer.

§ 77 The Class E System Contractor shall comply with all Occupational Safety and Health Act (OSHA) regulations. OSHA regulations can be found at the website www.osha.gov or by contacting the U.S.

Department of Labor.

§ 91 All proposed changes to permit design MUST be submitted and approved in the form of a preconstruction "as-built" drawing prior to system installation. Contact the GWDS for guidance. Post-construction "as-built" drawings are subject to GWDS approval and MUST be submitted to the GWDS within ten(10) calendar days of system completion. All "as-built" drawings(pre or post) detailing changes to engineered systems MUST be generated by the Class C Design Engineer.

Conditions for Owner

§ 17 The property owner shall connect to the county or municipal sewer system if and when such services become available and shall be in accordance with County and/or Municipal rules and regulations. At time of connection the existing septic disposal system shall be abandoned per DNREC Regulations and permit voided unless the GWDS approves continued operation.

§ 18 This system shall be maintained in such a manner as to prevent abnormal odors or surfacing, pooling and/or discharging of wastewater onto any surface waters.

§ 19 The sites of the initial and replacement absorption facilities shall not be covered by asphalt or concrete or subject to vehicular traffic or any activity or similar loadings that would adversely affect the soils. These sites shall be maintained so that they are free from encroachments by ancillary buildings and additions to main structures.

§ 21 The septic tank must be pumped by a licensed Class F Liquid Waste Hauler at a minimum of once every three (3) years. Septic tanks constructed of non-masonry materials should be pumped only when the seasonal water table is low to minimize possible flotation risk and must be immediately refilled by the owner.

Tax Parcel Number: DC-00-031.00-01-01.00.000

Site Evaluation Number: 563669

§ 76 The effluent filter, proposed or existing in either the outlet baffle of the septic tank, distribution box, septic tank lift station (Exhibit "V") or separate lift station vault, shall be cleaned and maintained as necessary to prevent clogging of the disposal system and can be performed by the property owner.

§ 93 The site evaluation supporting this permit will expire five(5) years after site evaluation approval date. System replacement after this date will require a new site evaluation and subsequent GWDS approval.

DEL4WARE

..., a sauce � 0,- WI.TEA Af.SCM.$C[S

APPLICATION - PERMIT

0 -SITE WASTEWATER SYSTEM

(Please Type or Print Legibly) OW ER'S NAME: United States of America. Bombay I look Wildlife Refuge

ADDRESS: 259 I Whitehall Neck Road. Smyrna, DE I 9977

PROJECT LOCATION: 259 I Whitehall Neck Road, Smyrna. DE I 9977

PHONE: _________ _

TAX/MAP #: 1-00-03I00-01-0 I 00-0000 I---

APPLICATION

PREPARER: Carmine Casper. P.E.

D REC

LICE SE#: C2050

PR EPA RER'S ADDRESS: --"8�0�! =B�ra=nd=--Y�'"'-'-'ir=,e�B=l �vd=·�, W�il=m=in=g�to=n .�D�E'-------------

PHON E: ___ .,._,(3=0=2),__,3=5-'-4-'--1--'-I =89'---- ___ _

I hereby affirm that the inform · provide 1 s document is accurate and complete:- r r �i); ·

Preparer's Signature:

�:.?•. - I

Date:

r-

-SE )TIC DESIG CRITERIA-

(Please check all boxes that apply) System Type: (CF= Cap & Fill/ FD - Full Depth)

Low Pressure Pipe (FD) Low Pressure Pipe (CF) Type of Construction:

\. Replacement

Elevated Sand Mound Pressure Dose (FD) Holding Tank Gravity (FD)

\. Std. Pressure Dose (FD)

td. Pressure Dose (CF)

X Bed or Trench

Wisconsin At-Grade Pressure Dose (CF)

Subsurface Micro [nigation Gravity (CF) Other

Gravellcss Chamber or Stone/Gravel X EZ Flows(l201/1201 P)

Sand-lined Yes X No

Existing System Malfunctioning

Pre-Treatment Units

Yes o X IA

X Septic Tank Other

Recirculating Sand i-:iltcr

Central Water Available Yes X o (If yes. please state Utility ame:)

ew Construction Component Replacement

Component: ________ _ Repair to Existing System

Reason:

Authorization to Use Existing System Permit#: ------- Present Condition: ------ Structure to be connected:

# of Bedrooms: NA See below Avg. Percolation Rate: _lQ__ Gallons Per Day Flow: _1400 Minimum Sq. Ft. Rcq'd: 3221

Sq. Ft. Proposed: 3230 sf

Flow Calculation: 210 visitors/day (peak season) x Sgpd/person = I 050 gpd + 16 employees (peak season) x 20 gpd/employee = 320 gpd

, L

Total flows = 1370 gpd. round up to 1400 gpd ior safty

245166

DNREC Approved Permit #245166 See Permit Conditions

Susan.W.Lee GWDS Received

Mandi.Anderson Sticky Note Paid by CC expertly

DNREC Approved Permit #245166 See Permit Conditions