Ralston Creek IA 02-IOW-1900

from confluence with unnamed tributary (S11 T79N R6W Johnson Co.) to headwaters in NE 1/4 S6 T79N R5W Johnson Co.

This is a Legacy Assessment. Assessments prior to 2016 were developed under the previous USPEA guidelines, and have a different format.

Assessment Cycle

2010

Result Period

2006 - 2008

Designations

General Use

Assessment Methodology

2010 Methodology Document

Assessment Type

Not Assessed

Integrated Report

Category 3a

Legacy ADBCode

IA 02-IOW-0155_2

Overall Use Support

Not assessed

Aquatic Life Use Support

Not assessed

Primary Contact Recreation

Not assessed

Documentation

Assessment Comments

Insufficient water quality information available to assess use support.

Basis for Assessment

Note: Prior to the 2008 Section 305(b) cycle, this stream segment was classified only for general uses. Due to changes in Iowa’s surface water classification that were approved by U.S. EPA in February 2008, this segment is now presumptively designated for Class A1 (primary contact recreation) uses and for Class B(WW1) aquatic life uses. According to the Iowa Water Quality Standards, all perennial rivers and streams and all intermittent streams with perennial pools that are not specifically listed in the Iowa surface water classification are designated as Class A1 and Class B(WW1) waters.

Insufficient water quality information available to assess use support. Thus, this waterbody is considered Not Assessed.