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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 790. Sewage Collection and Treatment Regulations
12/21/2024

9VAC25-790-990. Portable equipment for sewage pump stations.

Article 2
Forms and Agreements

A. Compliance information. The following information is being provided to demonstrate to the department that the owner* will remain in compliance, after the addition of the proposed pumping station indicated below:

1. Name and location of proposed pump station;

2. Owner of proposed pump station (when placed into operation);

3. Number of pumping stations in owner's sewerage system using portable equipment for continuous operability (existing, approved, plus proposed in this project);

4. Number of portable pumps/generators required:**

a. Maximum number of stations on radial extremity:

b. Five percent of total number of stations (subdivision A 3 of this section):

5. Number of portable pumps or generators*** owned by owner:

Note: *When the proposed pump station will be transferred to city ownership and operation, then this analysis will be made for the city-wide system. If the pump station is to remain under a private owner's control, then the analysis will be performed for that owner's system only.

**The number of portable pumps/generators required is the larger number of either A 4 a or A 4 b of this form.

***Portable equipment, either singly or in combination, shall be capable of operating the largest pump station included in the total for A 3 of this form.

B. Compliance agreement. This agreement certifies that:

1. At the design peak flow the overflow time* is . The owner certifies that his standard response time** as detailed in his current service area response plan for a station at the proposed location is shorter than the overflow time noted above.

2. This station and associated portable equipment will be maintained and operated in accordance with the owner's approved operation and maintenance program.

Name

Title

Date

Note: *Time transpiring between high liquid level alarm and the time that an overflow or backup and subsequent discharge occurs (to be determined at peak design flow).

**Time transpiring between high liquid level alarm and connection and starting of portable equipment.

Statutory Authority

§ 62.1-44.19 of the Code of Virginia.

Historical Notes

Former 12VAC5-581-1050 derived from Virginia Register Volume 18, Issue 10, eff. February 27, 2002; amended and adopted as 9VAC25-790-990, Virginia Register Volume 20, Issue 9, eff. February 12, 2004.

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