N.J. Admin. Code § 7:14A-23.4

Current through Register Vol. 56, No. 23, December 2, 2024

Section 7:14A-23.4 - Plans and specifications submitted to the Department with treatment works approval applications

(a) Maps, drawings, plans and profiles submitted as part of a treatment works approval application shall conform to the following:

1. Plans shall be drawn to standard scale and show the entire area of the project, including a general site plan;

2. The name of the New Jersey licensed professional engineer responsible for the design and his or her signature and embossed seal shall appear in the title block of each sheet of the submitted plans;

3. In the event that there is more than one sheet of plans, all shall be bound together and an index provided;

4. Plans shall not exceed 30 inches by 42 inches in size;

5. Streams and wetland areas, if present, shall be clearly indicated;

6. Plans shall show municipal boundaries, property lines, easements and all existing and proposed streets, including the existing and proposed surface elevations at all street intersections where sewer lines are proposed; and

7. All existing and proposed structures, sanitary sewers and combined sewers, both above and below ground, shall be shown and clearly labeled.

(b) Symbols used on submitted drawings shall conform to the following:

1. Existing and future sewers shall be shown by standard conventions;

2. All topographical symbols and conventions used shall conform to those of the United States Geological Survey; and

3. Elevations shown shall meet the following requirements:

i. Elevations of the surfaces of streets shall be placed outside the street lines, opposite their respective locations;

ii. Elevations of sewer inverts shall be shown at intersections, ends of lines, and wherever a change in sewer grade occurs;

iii. The elevation of sewers shall be written close to the point to which they refer, parallel with the sewer lines and between the street lines;

iv. The elevations of surfaces shall be drawn to the nearest 0.1 foot and those of the sewer inverts to the nearest 0.01 foot; and

v. All elevations shall be referenced to the North American Vertical Datum of 1988.

(c) The horizontal distances and stationing between manholes, grades in percent and sewer sizes and materials shall be shown for all proposed sewer lines.

(d) All sewer appurtenances, such as manholes, siphons and pumping stations shall be designated on the plans by appropriate symbols and referenced by a legend.

(e) Plans labeled preliminary are not acceptable for review unless a note is added to each sheet submitted stating that the plans are final with respect to sanitary sewer design.

(f) Plans submitted for treatment works that are already constructed shall show the "as-built" conditions (as determined through field investigation) and the title block of each sheet shall include the term "as-built."

(g) Profiles and construction details shall meet the following requirements:

1. Profiles shall indicate all manholes, pumping stations, sanitary, combined or industrial sewer lines, concrete encasements, sleeves, and any significant crossings such as storm sewers, potable water lines or utility lines.

2. In the case of stream crossings, elevations of stream beds, normal flow lines and the type of sewer pipe with the length of concrete encasement, as required by 7:14A-23.6(b), shall be indicated.

3. The size and gradients of sewers, surface elevations and sewer inverts shall be shown at or between each manhole.

4. Profiles of gravity and forced sewer lines shall be drawn to standard scale with all symbols indicated in the legend.

5. Detail drawings of all sewer appurtenances, such as manholes, drop manholes, inspection chambers, siphons, pumping stations, force main connections into manholes and other related items shall accompany the general sewer system plans.

6. For sewage treatment plants, in addition to all other requirements, the plans shall contain the following:

i. A general plan showing site boundaries including areas reserved for future expansions;

ii. All buildings or building lots within 500 feet of the plant property;

iii. A detail plan of the various units and structures which comprise the plant; and

iv. Detail plans showing a flow diagram, and longitudinal and transverse sections sufficient to explain the construction of each unit including hydraulic gradient.

(h) Specifications for the construction of treatment works shall be directly applicable to the engineering (including hydraulic) features of the proposed project and shall meet the following minimum requirements:

1. Detailed information shall be included on the construction methods and materials proposed for use so as to provide the construction contractor with the specific details necessary to satisfy the project design; and

2. Specifications shall address the following:

i. The quality of materials and workmanship;

ii. The operating characteristics and equipment rating;

iii. Allowable infiltration/exfiltration and the testing procedures to be followed;

iv. Requirements for all mechanical and electrical equipment necessary for the treatment works; and

v. A program for maintaining the operation of existing sewerage systems during construction.

N.J. Admin. Code § 7:14A-23.4