SURFACE WATER QUALITY STANDARDS

One of the cornerstones of the Clean Water Act, the standards that define the water quality goals for Arizona streams and lakes. They provide the basis for controlling discharges of pollutants to surface waters.

SURPLUS WATER

Developed water supplies in excess of contract entitlement or apportioned water.

SURROGATE MARKET

In the absence of a market, information can be drawn from related marketed goods to determine the use value of the non-marketed goods. The consumer behavior toward marketed goods reveals consumer’s preferences.

SURVEILLANCE

Set of activities, except reassessment, to monitor the continued fulfilment by accredited CABs of requirements of accreditation Note: Surveillance includes both surveillance on-site assessments and other surveillance activities, such as the following: a. Enquires from the Accreditation Body to the CAB on aspects concerning the accreditation; b. Reviewing the declarations of the CAB with respect […]

SURVEY

Sampling of a representative number of sites during a given hydrologic condition.

SURVEY MARKER

Permanent physical mark on a dam or appurtenant structure used to measure changes in horizontal and vertical movement.

SUSPENDED

(as used in tables of chemical analyses)The amount (concentration) of undissolved material in a water-sediment mixture. Most commonly refer to that material retained on a 0.45

SUSPENDED SOLIDS

Different from suspended sediment only in the way that the sample is collected and analyzed.

SUSPENDED-SEDIMENT CONCENTRATION

The velocity-weighted concentration of suspended sediment in the sampled zone (from the water surface to a point approximately 0.3 foot above the bed); expressed as milligrams of dry sediment per liter of water-sediment mixture (mg/L).