N.H. Code Admin. R. Env-Wq 708.15

Current through Register No. 25, June 20, 2024

Section Env-Wq 708.15 - Instrumentation and Control Requirements

Any supervisory control and data acquisition (SCADA) system included in the design shall have the following minimum capabilities:

(a) Air flow rate and flow pacing of blowers;

(b) Alarm generation and history;

(c) Influent flow history and trending;

(d) Dissolved oxygen history and trending;

(e) Power monitoring for main process pumps and motors and blowers and motors, including at a minimum the ability to monitor:

(1) Power factor data at equipment startup;

(2) Total harmonic distortion; and

(3) Total energy usage;

(f) Return activated sludge pump flow rate and pacing;

(g) Real time monitoring and recording of energy use; and

(h) Automated equipment system monitoring and control for the following, as applicable:

(1) Pumps;

(2) Chemical feed systems;

(3) Disinfection;

(4) Aeration system;

(5) Digester; and

(6) Dewatering.

N.H. Code Admin. R. Env-Wq 708.15

Adopted byVolume XXXIV Number 46, Filed November 13, 2014, Proposed by #10693, Effective 10/15/2014, Expires10/15/2024.