12 Va. Admin. Code § 5-590-390

Current through Register Vol. 41, No. 8, December 2, 2024

Section 12VAC5-590-390 - Physical constituent compliance

A. Color, odor, pH, and total dissolved solids.

1. When the sampling results for color, odor, pH, or total dissolved solids exceed the applicable SMCL, the owner shall collect a confirmation sample at the same sampling site within two weeks of notification of the analytical results of the first sample.

2. The results of the initial and confirmation samples shall be averaged to determine compliance with 12VAC5-590-340 C. The department has the discretion to void results of obvious sampling errors.

3. If the average concentration level of any contaminant of color, odor, pH, or total dissolved solids is greater than the SMCL listed in Table 340.3, then the department shall determine whether treatment to remove that contaminant can be accomplished or more suitable supplies of source water are, or can be made, available.

B. Turbidity in groundwater sources not required to filter shall not:

1. Interfere with disinfection throughout the distribution system;

2. Cause taste and odors upon disinfection; or

3. Cause consumers to question the safety of their drinking water.

12 Va. Admin. Code § 5-590-390

Derived from VR355-18-004.06 § 2.6, eff. August 1, 1991; amended, Virginia Register Volume 9, Issue 17, eff. June 23, 1993; Volume 12, Issue 2, eff. November 15, 1995; Amended, Virginia Register Volume 37, Issue 20, eff. 6/23/2021.

Statutory Authority: §§ 32.1-12 and 32.1-170 of the Code of Virginia.