A. All automatic flow measurement and sampling devices, access facilities, and related equipment shall be installed by the person discharging the waste, at his/her expense, and shall be maintained in safe operating condition at all times, and readily accessible to the City Engineer at any reasonable time.

B. The flow measurement device can be any type of device providing accurate and continuous flow indication and approved by the City Engineer. Pump timers or other indirect measurement devices will not be acceptable.

C. The flow measurement device shall be suitable for indicating and totaling the flow through the device provided above with an error not exceeding plus or minus five percent. The instrument may be equipped with a set of electrical contacts arranged to momentarily close a circuit to energize a process timer and sampling device for every fixed quantity of flow. Other control variations will be acceptable if it can be demonstrated that the sampling procedure will result in a waste sample which is proportional to and representative of the waste flow. The length of operation of the sampling device shall be dependent on the type of sampling arrangement used, but in no case shall the daily collected sample be less than two quarts in volume.

D. The method of sampling used can be by any means approved by the City Engineer. All samples must be continuously refrigerated at a temperature of 30 degrees F, plus or minus five degrees.

E. The flow measurement and sampling station shall be located and constructed in a manner acceptable to the City Engineer. Complete plans on all phases of the proposed installation, including all equipment proposed for use, shall be submitted to the City Engineer for approval prior to construction.

F. Any person discharging waste shall keep flow records as required by the City Engineer and shall provide qualified personnel to properly maintain and operate the facilities.

G. The waste samples will be collected and tests performed by the City Engineer.