No. 29649 (Amendment): R309-110-4. Definitions

DAR File No.: 29649
Filed: 03/14/2007, 10:49
Received by: NL

RULE ANALYSIS

Purpose of the rule or reason for the change:

The purpose of this amendment is to correct a typographical error and to correct a definition in response to comments received by Region 8 of the United States Environmental Protection Agency. This clarification is needed to retain state primacy.

Summary of the rule or change:

This amendment corrects a typographical error and slightly clarifies one definition in Section R309-110-4.

State statutory or constitutional authorization for this rule:

Sections 19-4-104 and 63-46b-4, and 40 CFR 141.2

Anticipated cost or savings to:

the state budget:

There is no impact to the state budget as the changes simply clarify existing language.

local governments:

There is no impact to local government as the changes simply clarify existing language.

other persons:

There is no impact to other persons as the changes simply clarify existing language.

Compliance costs for affected persons:

There is no impact to the compliance costs for affected persons as the changes simply clarify existing language.

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

The department agrees with the comments in the cost and compliance summaries above. 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:

Environmental Quality
Drinking Water
150 N 1950 W
SALT LAKE CITY UT 84116-3085

Direct questions regarding this rule to:

Patti Fauver at the above address, by phone at 801-536-4196, by FAX at 801-536-4211, or by Internet E-mail at [e-mail]

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:

05/01/2007

This rule may become effective on:

05/08/2007

Authorized by:

Ken Bousfield, Acting Director

RULE TEXT

R309. Environmental Quality, Drinking Water.

R309-110. Administration: Definitions.

R309-110-4. Definitions.

As used in R309:

"Action Level" means the concentration of lead or copper in drinking water tap samples (0.015 mg/l for lead and 1.3 mg/l for copper) which determines, in some cases, the corrosion treatment, public education and lead line replacement requirements that a water system is required to complete.

 

. . . . . . .

 

"Practical Quantitation Level" (PQL) means the required analysis standard for laboratory certification to perform lead and copper analyses. The PQL for lead is .005 milligrams per liter and the PQL for copper is 0.050 milligrams per liter.

"Presedimentation" is a preliminary treatment process used to remove gravel, sand and other particulate material from the source water through settling before the water enters the primary clarification and filtration processes in a treatment plant.

"Primary Disinfection" means the adding of an acceptable primary disinfectant during the treatment process to provide adequate levels of inactivation of bacteria and pathogens. The effectiveness is measured through "CT" values and the "Total Inactivation Ratio." Acceptable primary disinfectants are, chlorine, ozone, and chlorine dioxide (see also "CT" and "CT_99.9").

 

. . . . . . .

 

"UDI" means under direct influence (see also "Ground Water Under the Direct Influence of Surface Water").

"Uncovered finished water storage facility" is a tank, reservoir, or other facility used to store water that will undergo no further treatment to reduce microbial pathogens except residual disinfection and is directly open to the atmosphere.

"Unprotected aquifer" means any aquifer that does not meet the definition of a protected aquifer.

 

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KEY: drinking water, definitions

Date of Enactment or Last Substantive Amendment: May 21[March 6], 2007

Notice of Continuation: May 16, 2005

Authorizing, and Implemented or Interpreted Law: 19-4-104; 63-46b-4