Fort Des Moines Park Pond IA 04-LDM-1099

Polk County S34T78NR24W at Des Moines.

Open Data Collection Period Modal

For purposes of developing stream/river water quality assessments for integrated reporting, three years of water quality data are typically used for both conventional pollutant parameters (e.g., indicator bacteria) and the less frequently monitored toxic parameters (e.g., toxic metals). Since the 2004 IR cycle, DNR has used a three-year data gathering period for streams, rivers, and beaches. For most assessments, the use of three years of data increases the number of samples upon which the decision on use support is based and helps address the problem of weather-related year-to-year fluctuations in water quality.

Due to the lower sampling frequency in Iowa’s ambient lake, biological, fish kill, and fish tissue monitoring programs, five years of data are used for developing IR assessments and for identifying Section 303(d) listings.

Data Type	Data Timeframe
Beach Sampling Data	CY 2016 - 2018
Stream/River Water Quality Data	CY 2016 - 2018
Lake Water Quality Data	CY 2014 - 2018
Biological Sampling Data	CY 2014 - 2018*
Fish Kill Data	CY 2014 - 2018
Fish Tissue Sampling Data	CY 2014 - 2018
Continuous Dissolved Oxygen Sampling Data	CY 2014 - 2018
*Biological sites sampled in both 2013 and 2017 were also assessed.

Open Segment Map
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Cycle: 2020
Release Status: Final
Overall IR: 2 - Some of the designated uses are met but there is insufficient data to determine if remaining designated uses are met.
Trophic: Unknown
Trend: Unknown
Created: 8/13/2020 9:11:52 AM
Updated: 10/14/2020 11:44:07 AM

Use Support

Class BLW

Aquatic Life - Lakes and wetlands

Not Assessed

Class HH

Human Health -

Fully Supported

General Use

General Use water -

Not Assessed

Impairment Delistings

No delistings for this assessment cycle.

Documentation

Assessment Summary

The Class BLW use remains "not assessed" due to a lack of enough water quality monitoring data. The Class HH use remains assessed (monitored) as "fully supporting" based on the results of IDNR fish contaminant monitoring.

Assessment Explanation

Sources of Data:

Data Source	Data Source ID	Data Type	Data Age	Site ID	Site Name	Site Description
Iowa DNR	6	WQ	CY 2018-2018	14000250	Fort Des Moines Park Pond	Lake Deep Point
Iowa DNR		FT	See Below	272	Fort Des Moines Park Pond

Class BLW - Conventional Parameters:

Site ID	Data Source ID	Parameter Name	# Samples / # Years	Maximum Value	Mean Value	Median Value	# Acute / Chronic Violations	% Acute/ Chronic Violations	Significantly >10% Violations	Assessment Type	Support Level
14000250	6	Ammonia	3 / 1	0.018	0.01	0.01	0 / 0	0% / 0%	NO	Evaluated	Full
14000250	6	Dissolved oxygen	3 / 1	10.6	9.9	10.3	NA / 0	NA / 0%	NO	Evaluated	Full
14000250	6	pH	3 / 1	8.6	8.5	8.6	0 / NA	0% / NA	NO	Evaluated	Full
14000250	6	Temperature	3 / 1	27	26.5	26.5	0 / 0	0% / 0%	NO	Evaluated	Full

Class HH - Fish Tissue Sampling:

Site ID

Date

Species Name

Biopart

# in sample

chlordane result

chlordane violation?

PCBs result

PCBs violation?

Hg result

Hg violation?

Assessment Type

Support Level

272

7/21/10

largemouth bass

fillet

0.244

Evaluated

Full

Monitoring and Methods

Assessment Key Dates

7/21/2010

Fish Tissue Monitoring

6/11/2018

Fixed Monitoring Start Date

9/17/2018

Fixed Monitoring End Date

Methods

222

Non-fixed-station monitoring (conventional during key seasons and flows)

260

Fish tissue analysis