DAR File No. 28416

Environmental Quality, Drinking Water

R309-105-9

Minimum Water Pressure

NOTICE OF PROPOSED RULE

DAR File No.: 28416
Filed: 12/15/2005, 01:23
Received by: NL

RULE ANALYSIS

Purpose of the rule or reason for the change:

The reason for the change is to describe additional minimum pressure under conditions of flow for new Public Water Systems designed and constructed after March 1, 2006; and to make the rule more in accordance with typical design standards, as well as standards of other agencies such as the American Water Works Association (AWWA), the American Society of Civil Engineers (ASCE), and other nearby states.

Summary of the rule or change:

The changes: clarify that the minimum water pressure of 20 psi is during conditions of fire flow added to peak day demand as described elsewhere in rule; add a condition of minimum water pressure of 30 psi during peak instantaneous demand; and add a minimum water pressure of 40 psi during peak day demand for new Public Water Systems designed and constructed after March 1. 2006.

State statutory or constitutional authorization for this rule:

Section 19-4-104

Anticipated cost or savings to:

the state budget:

None--Since this amendment only clarifies this portion of rule and the additional water pressure requirements for new Public Water Systems, it will not require additional personnel or other funds from the state budget.

local governments:

Little to None--Most, if not all, well functioning Public Water Systems operated by local government currently meet or exceed the current minimum water pressure minimums, as well as the proposed additional minimums. The design of new Public Water Systems will only require initial planning concerning storage location and distribution pipeline sizing which should not add significant cost or time.

other persons:

Little to None--Most engineering companies currently look to typical textbook design standards as well as standards of other agencies such as AWWA, ASCE, and other nearby states when designing Public Water Systems so there should not be any additional cost or time involved.

Compliance costs for affected persons:

New Public Water Systems designed and constructed after March 1, 2006, should not see any costs over and above that if their system were designed with the typical capacity for anticipated growth and expansion. Some increased cost may be expected if storage tank location for adequate pressure requires additional length of transmission line.

Comments by the department head on the fiscal impact the rule may have on businesses:

The department agrees that the proposed changes to this rule will have little to no detrimental impact on existing water systems nor on new public water systems. Dianne R. Nielson, Executive Director

The full text of this rule may be inspected, during regular business hours, at the Division of Administrative Rules, or at:

Direct questions regarding this rule to:

Bill Birkes at the above address, by phone at 801-536-4201, by FAX at 801-536-4211, or by Internet E-mail at bbirkes@utah.gov

Interested persons may present their views on this rule by submitting written comments to the address above no later than 5:00 p.m. on:

01/31/2006

This rule may become effective on:

02/01/2006

Authorized by:

Kevin Brown, Director

RULE TEXT

R309. Environmental Quality, Drinking Water.

R309-105. Administration: General Responsibilities of Public Water Systems.

R309-105-9. Minimum Water Pressure.

(1) Unless otherwise specifically approved by the Executive Secretary, no water supplier

shall allow any connection to the water system where water pressure at the point of connection

will fall below 20 psi during the normal operation of the water system.

(2) Unless otherwise specifically approved by the Executive Secretary, public water systems constructed after March 1, 2006 shall be designed and shall meet the following minimum water pressures at points of connection:

(a) 20 psi during conditions of fire flow and fire demand experienced during peak day demand;

(b) 30 psi during peak instantaneous demand; and

(c) 40 psi during peak day demand.

[(2)](3) Individual home booster pumps are not allowed as indicated in R309-540-5(4)(c).

KEY: drinking water, watershed management

[September 13, 2005]2006

Notice of Continuation May 16, 2005

19-4-104

63-46b-4

ADDITIONAL INFORMATION

PLEASE NOTE:

• Text to be deleted is struck through and surrounded by brackets (e.g., [example]). Text to be added is underlined (e.g., example). Some browsers may not depict some or any of these attributes on the screen or when the document is printed.
• Please see the DISCLAIMER regarding information available from state web pages.

For questions regarding the content or application of this rule, please contact Bill Birkes at the above address, by phone at 801-536-4201, by FAX at 801-536-4211, or by Internet E-mail at bbirkes@utah.gov

For questions about the rulemaking process, please contact the Division of Administrative Rules (801-538-3764). Please Note: The Division of Administrative Rules is NOT able to answer questions about the content or application of these administrative rules.