Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

North Branch Volga River IA 01-VOL-330

mouth (S33 T93N R9W Fayette Co.) to confluence with unnamed tributary in S8 T93N R9W Fayette Co.

Assessments
Cycle
IR Category
2026 Draft
5
2024
5
2022
5
2020
5
2018
5
2016
5
Legacy Assessments
Details
Type
River
Segment ID
330
Segment Size
5.53 Miles
HUC8
07060004
HUC12
  • 070600040501
Legacy ADBCode
IA 01-VOL-0160_0
Designated Uses
  • Class A1 P
  • Class BWW2
  • Class HH
PIndicates a Presumptive Use
Segment Memos 1
Prior to the 2008 Section 305(b) cycle, this stream segment was designated only for Class B(LR) aquatic life 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.  The stream remains designated for aquatic life uses (now termed Class B(WW2) aquatic life uses).
11/21/2018
Map
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Water Monitoring Network
Fish Kills
Recreation and Water Quality
BioNet Biological Assessment Sites
AQuIA Monitoring Sites