N.M. Admin. Code § 20.7.4.12

Current through Register Vol. 35, No. 21, November 5, 2024

Section 20.7.4.12 - PUBLIC WATER SUPPLY SYSTEMS

A. In order to operate the various types of treatment processes at public water supply systems, the indicated level of certification shall be required:

Type of Treatment Process	Population Served
Type of Treatment Process	25 to 500	501 to 5,000	5,001 to 10,000	10,001 to 20,000	20,000+
Filtration (sand, gravity)	SWA	WS3	WS3	WS3	WS4
Coagulation, sedimentation, filtration	SWA	WS3	WS3	WS4	WS4
Chemical precipitation (Mn, Fe, softening)	SWA	WS3	WS3	WS4	WS4
Aeration	SW	WS2	WS3	WS3	WS4
Odor and taste control (activated carbon)	SW	WS2	WS3	WS3	WS4
Chemical addition (stabilization)	SW	WS2	WS2	WS3	WS4
Pressure filtration	SWA	WS2	WS2	WS3	WS4
Ion exchange (softening, defluoridation)	SWA	WS2	WS3	WS3	WS4
Chlorination	SW	WS2	WS2	WS3	WS4
Fluoridation	SW	WS2	WS2	WS3	WS4
Arsenic removal	SWA	WS3	WS3	WS3	WS4
Radionuclide removal	SWA	WS3	WS3	WS3	WS4
Special, such as desalinization	SWA	WS4	WS4	WS4	WS4
Production, ground water only	SW	WS1	WS2	WS3	WS4

B. In order to operate various types of distribution systems at public water supply systems, the indicated level of certification shall be required:

Type of Distribution Systems	Population Served
Type of Distribution Systems	25 to 500	501 to 5,000	5,001 to 10,000	10,001 to 20,000	20,000+
Distribution of treated surface water	SW	DS2	DS2	DS2	DS3
Distribution of chlorinated groundwater	SW	DS2	DS2	DS2	DS3
Distribution of unchlorinated groundwater	SW	DS1	DS2	DS2	DS3

C. In order to perform the various types of water sampling at public water supply systems after January 1, 2008, the indicated level of certification shall be required:

Type of Water Sampling	Population Served
Type of Water Sampling	25 to 500	501 to 5,000	5,001 to 10,000	10,001 to 20,000	20,000+
Microbiology	SW or WST1	WST1	WST1	WST1	WST1
Chemical and Radiological	WST2	WST2	WST2	WST2	WST2

N.M. Admin. Code § 20.7.4.12

20.7.4.12 NMAC - Rp, 20 NMAC 7.4.112, 1-26-01; A, 11-15-06