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Memorandum

Date: December 22, 2011

Subject: Summary of the Cleveland Municipal Airport continuous monitoring of DMR and 

sediment control using Passive Treatment Systems-Phase II 

From: Melissa Bouatene, ORISE Fellow-EPA HQ

To: The Record

This memorandum summarizes the monitoring of discharges resulting from stormwater flows on 

the Cleveland Municipal Airport construction site in Cleveland, TN. EPA conducted a site visit 

of this project on November 22, 2011. The construction project has been going on for over two 

years now (started in 2009 with Phase I). During Phase II that started early November 2010 and 

ended in October 2011, all major earth moving operations were completed. Top soil was applied 

and seeded on the runway, taxiway and building pads, so that there would be vegetative cover 

during the down period. According to Dr. Richard Urban, Environmental Field Office Manager 

at the Tennessee Division of Water Pollution Control, there will be several months of delays 

before Phase III begins (projected April-May 2012). Phase III will be the last phase of this 

construction and during this phase, the taxiway and runway will be completed. 

The first part of this memorandum explains the phases that this project site has undergone so far. 

The second part gives background information and explains the monitoring data from Phase II of 

the construction including the sampling techniques used to monitor turbidity measurements of 

stormwater samples. The third part analyzes wastewater management and treatments used around 

sediment basins and outfalls with specific details on PTS and method of application. 

I. Project Details

Phase I comprised primarily of environmental compliance commitments such as redirecting part 

of Tasso Road, relocating 2,283 feet of Little Chatata Creek, and mitigating loss of 10.47 acres 

of wetlands. Phase II consisted of valley filling; unclassified excavation of 2,200,000 cubic yards 

with erosion control, grading and storm drain piping; the relocation of approximately 290 linear 

feet of an unnamed tributary to Little Chatata Creek; and the construction of a 5-foot by 5-foot, 

806-foot long box culvert (Cleveland Daily Banner

The Cleveland Airport construction site is 340 acres of land including 265.9 disturbed areas 

comprised of distinct areas, referred to as sites, each with its own outfall and monitoring 

requirements to monitor effluent from sediment basins discharges. Runoffs from undisturbed 

areas of the site are referred to as natural stormwater discharges and are treated with perimeter 

and internal BMPs only. 

). In addition, during Phase II, the site 

implemented Passive Treatment Systems (PTS) of sediment basins discharges using polymer, 

PAM (Polyacrylamide in floc logs), and the installation of rock baffles. Please refer to Figure 1 

on Page 5 for a diagram of the polymer’s open ditch placement. 
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II. Background and Analytical Data

The sediment basins used on the construction site are designed for a 10 year storm. So far, no 

particular storm has been greater than the design capacity of the basins. The permit also requires 

the construction site operator to conduct in-stream monitoring (upstream and downstream) from 

the construction site. The permit does not include a turbidity limit; therefore, the effectiveness of 

the controls on-site is calculated by evaluating the difference (∆NTU) between upstream

turbidity and downstream turbidity. Whenever the downstream turbidity is similar or less than 

the turbidity of the upstream flow, an assumption is made that there were no significant 

discharges of sediments from the construction project to the receiving water. The early part of 

the construction (Phase I) was during very dry period (October 2009-end of October 2010) with 

only one rain in July 2010. Therefore, no discharge data was recorded except data for July 2010. 

Part of Phase II also occurred during a dry period; it only started raining in early March 2011. 

The turbidity data is presented in the attached document: Attachment 1-Summary of 

Analytical Data. That document presents data for the in-stream samples (LCD -Little Chatata 

Creek Downstream and LCU -Little Chatata Creek Upstream) and SW-Stormwater outfalls. The 

numbers following after the “SW” on Attachment 1 represent numbers attributed to different 

locations of the outfalls. The July 2010 data from Phase I records a turbidity of 450 NTU from 

SW 3. During Phase II starting around 10/29/2010, discharge sample taken at that same location 

(SW 3) reads 98 NTU. Attachment 2 presents the minimums and maximums measured in the 

discharges during construction. It also discusses the relationship between the use and no use of 

PTS on stormwater flows and the turbidity results from those discharges. 

Three techniques based on drainage locations are used to monitor turbidity from stormwater 

flows throughout the site.

• Manta2 Multi-probes sensors with turbidity and depth sensors (Attachment 7: Fig. 3a-3c) 

are used to monitor the LCD and LCU locations. This instrument can run unattended and 

is equipped with batteries that last for up to two weeks. The sensors are placed inside the 

streams and automatically collect turbidity and depth measurements, each hour, which 

are stored internally. A technician is sent to the field once per week to download the data 

onto a laptop computer. The cost for the Manta2 sensors and the batteries are ~$4,500 

and ~$600 respectively. 

• An ISCO 6712 portable sampler (Attachment 7: Fig. 3f & 4a) is used to monitor the 

discharging stormwater outfalls of 50 acres or more, like SW 6 and SW 5. The ISCO 

sampler is a programmable liquid sampler that is capable of operating in heavy storms 

without additional protection. The sample tube is placed inside the sediment basins

discharge pipe, and a flow meter is used to measure the velocity and depth in the 

sediment basin discharge pipe once every 15 minutes. If flow is detected, the sampler 

will collect one sample per hour as long as flow is present. If no flow is present, then the 

sampler does not collect a sample. Sample is collected through a peristaltic pump, 

located aside the controller case, that pulls in the samples and purges the sample line. The 

sample is fed from the pump down to a filling arm beneath the control case. The filling 

arm rotates above the bottle case and can fill up to 24 bottles of 1000 mL sample. The 

velocity and depth measurements are stored internally and can either be read from an 

external display located on the sampler or can be downloaded onto a computer. The 

renting price for the ISCO unit is ~$750/month. This equipment has remained on-site 

throughout the construction period.
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• A grab sampling procedure is used for the outfalls draining less than 50 acres. With this 

procedure, samples are only collected when a discharge is present, as these outfalls have 

not discharged very often during construction. Only approximately 25 samples have been 

collected from outfalls draining less than 50 acres.

The outfalls draining less than 7 acres, like outfalls 7, 8, 8A, and 2 for example, were stabilized 

at the end of Phase I, and the sediment basins around those outfalls were removed. Discharges 

from these outfalls rarely occur as well. The water leaving those outfall points are considered 

non-disturbed/natural stormwaters (no disturbance from site activities affected the nature of the 

water). 

Upon being collected, the samples are immediately placed in coolers and shipped to the 

laboratory for analysis. The turbidity analysis is performed within 72 hrs of sample collection; 

the TSS analysis, within 7 days. While samples are being collected for turbidity analysis, 

samples are also collected for TSS analysis in a separate container. The laboratory requires at 

least 250 mL of sample to run the turbidity analysis and at least 1000 mL to run the total 

suspended solids analysis. 

III. Treatment and Wastewater Management

Stormwater samples flow through a series of BMPs and Passive Chemical Treatments before 

reaching sediment basins and outfalls and discharging to the Little Chatata Creek. Attachment 4

connects outfalls with their respective sediment basins with outfalls’ location and acreage 

summary. Attachment 6 summarizes the BMPs and/or PTS used around each outfall. The PTS 

used on the Airport construction site consisted of 80 polymer floc-log blocks (type 706B) and 

polymer powder treated jute mesh placed in constructed treatment ditches throughout the site

which ultimately lead to sediment basins. The floc logs are made out of soil specific tailored logblocks containing blends of water treatment components and PAM co-polymer that are 

responsible for improving water clarification and erosion control. (Buttrey, T. (2011, October 

10)). The floc logs are soluble in water and upon being dissolved, expand in linear molecular 

forms that reduce and prevent fine suspended particles including colloidal clays, from remaining 

in suspension in stormwater. Water clarification happens when the negatively charged ions 

present in the floc log polymers interact with anything that is positively charged in the turbid 

water and neutralizes it. As the negatively charged ions present in the polymers attract positively 

charged ions, they can also attract the negatively charged ions that are present in colloidal-sized 

particles present in turbid water. The negatively charged ions in polymers will attract the 

negatively charged ions through positively charged compounds (cations) such as calcium, 

potassium, ammonium, magnesium, which are present in adequate amount in most soils. The 

more cations present in a soil, the better the reaction between the polymer and the turbid water is. 

Polymer floc logs are designed for a base flow rate of 60 – 75 GPM (Gallons Per Minute) and 

dose between 2-3.5 PPM based on the surface chemistry of the device. A flow rate exceeding 75 

GPM will be reduced after the water flows through silt fences, which will reduce the flow’s 

velocity, prior to reaching the treatment ditches. Because the surface chemistry of the device is 

directly proportional to the flow of the stormwater, it helps in preventing over dosage of polymer 

in water. As the stormwater’s flow increases, the dosage increases, and as the flow decreases, the 

dosage decreases as well. There is no chemical dosage for a stagnant flow. 
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Stormwater treatment happens in an open ditch placement (Figure 1 below). The turbid water 

flows toward the different treatment ditches through diversion berms and grading on the site. The

ditch is created, either by digging out the bed or building up the walls, and lined with plastic or 

geo-synthetic fabric to prevent erosion. The exposed soil is covered with jute matting, and Silt 

Stop powder is applied to prevent erosion. Floc Logs, specific to the type of soil, are placed in 

series 50-60 ft apart from one another and secured along the ditch through ropes tied off to 

wooden sticks placed inside the ground. Check dams are placed in between the floc logs, (2 floc 

logs per check dams), to force the water to flow over and around them in order to increase 

turbulence and mixing with the floc logs. This placement allows the water to mix with the sitespecific polymer blends and react with the suspended sediment. The ditch is lined with jute or 

similar matting to provide surface area for the flocculated sediment to adhere to and help remove 

fine particulate from the water. Using the wrong form of PAM on a soil will result in some 

degree of performance failure and increase the potential for this material to enter surface waters.

Treatment Process Description

The floc logs have a light blue color when brand new and remain viable for up to 180 days. 

Overtime, the light blue color fades from the turbid water’s dirt being collected on them. A 

visual inspection is done frequently by engineers on site to scrap off the dirt over the blocks or 

replace them if needed (Polymer Enhanced BMP Application Guide). 

Figure 1- Diagram of Floc Log Treatment (Applied Polymer Systems, Inc.)
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References

Applied Polymer Systems, Inc. “Polymer Enhanced Best Management Practice (PEBMP) 

Application Guide”. Woodstock: Georgia, 2002

LaBreche, Timothy and Williams, Chris. “ISCO Automated Sampler, Environmental Sampling 

& Monitoring Primer”. Vermont, 1997. Web. 25 October 2011.

McLaughlin, R.A., Hayes, S.A., and Bartholomew, N., “Innovations (Old and New)

for Improving Erosion, Sediment, and Turbidity Control”, 2003 International Erosion Control 

Association Meeting, Las Vegas, NV.

Polymer Enhanced BMP Application Guide, “Stormwater treatment: Dewatering/ Treatment 

Ditches.”

Accessed November 16, 2011.

http://www.siltstop.com/altbmpguide/closedloop/WT.pdf.

Cleveland Daily Banner, “Airport construction hits second gear Phase II bids to be open by end of 

month.” http://www.clevelandbanner.com/view/full_story/8998084/article-Airport-construction-hitssecond-gear-Phase-II-bids-to-be-open-by-end-of-month?instance=latest_articles#ixzz1W3B09f4N. 

Accessed November 25, 2011.

Acknowledgements

Dr. Richard Urban

Environmental Field Office Manager

Tennessee Division of Water Pollution Control

Troy Buttrey, PE TN, KY

PDC Consultants, LLC

Brent Wood, P.E.

Staff Engineer

S&ME, Inc.

Steve Iwinski

Environmental Scientist

Applied Polymer Systems, Inc.

Northern R&D Lab
Attachment 1- Summary of Analytical Data
Summary of Analytical Data 

September 2011

Cleveland Municipal Airport

S&ME Project No. 1437-06-639A

NPDES Permit No. TN0080934

Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS Turbidity TSS

(NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l) (NTU) (mg/l)

10/29/09 3.9 2.6 --- --- --- --- --- --- 4.9 2.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- pre-construction

05/07/10 4.1 2.8 --- --- --- --- --- --- 4.3 3.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

05/13/10 2.6 2.5 --- --- --- --- --- --- 4.2 4.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

05/20/10 2.6 2.8 --- --- --- --- 2.6 4.2 3.1 2.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

05/26/10 2.3 2.1 --- --- --- --- 0.74 4.6 0.95 2.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/04/10 4.4 1.9 --- --- --- --- 4.2 4.5 5.9 3.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/10/10 6.6 3.1 --- --- --- --- 5.2 3.1 6.2 6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/18/10 5.5 3.5 --- --- --- --- 5.4 4.8 5.3 4.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/25/10 3.3 2.5 --- --- 5.7 13 6.5 8.4 4.7 3.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/25/10 --- 2.5 --- --- --- 4.4 --- 8.2 --- 3.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

07/02/10 3.0 2.0 --- --- 4.4 5.1 7.6 8.1 4.2 2.7 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/02/10 3.7 1.9 --- --- 8.5 7.5 7.6 9.3 4.3 3.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

07/08/10 2.3 2.4 --- --- 110 82 7.9 14 3.7 3.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/13/10 --- --- --- --- --- --- --- --- --- --- --- --- --- --- 450 230 --- --- --- --- --- --- --- --- storm sample

07/16/10 4.6 4.8 --- --- 8.2 24 1.2 5.2 3.1 4.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/23/10 4.9 3.6 --- --- 3.3 3.9 3.8 3.5 4 5.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/30/10 4.1 2.6 --- --- 5.4 4.4 4.7 5 7 4.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/30/10 4.4 2.2 --- --- 5.7 5 4.5 4.1 5.8 4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

08/05/10 1.2 1.9 --- --- 5.7 5.3 3.6 3.7 1.7 3 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/13/10 3.8 <1.0 --- --- 4.2 5.1 5.5 4.3 3.7 2.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/17/10 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- storm sample

08/20/10 3.7 2.4 --- --- 10 9.5 3.3 2.5 5 4.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/27/10 1.5 <1.0 --- --- 2.6 4.4 2.1 3 1.6 2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/27/10 --- <1.0 --- --- --- 5.6 --- 3 --- 2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

09/03/10 3.4 1.0 --- --- 6.5 6.1 5 3.4 3 2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/10/10 1.6 1.1 --- --- 11 14 3.6 3.4 2.8 1.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/17/10 2.0 <1.0 --- --- 16 15 4.7 3.5 2.9 1.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/21/10 1.8 <1.0 --- --- 31 28 4.3 3.6 2.3 1.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

10/01/10 3.0 1.1 --- --- 9.6 34 5.3 3.8 3.2 1.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

10/08/10 2.1 <1.0 --- --- 15 33 6.2 3.6 2.2 1.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

10/15/10 2.6 1.0 --- --- 27 58 9.4 4.6 2.8 1.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

10/22/10 2.4 1.4 --- --- 28 26 4.3 1.5 2.2 1.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

10/29/10 3.1 <1.0 --- --- 8.9 6.5 6.2 2.8 5.7 1.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

10/29/10 --- <1.0 --- --- --- 6.9 --- 2.5 --- 1.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

11/05/10 4.1 1.2 --- --- 4.6 4.8 9.3 5.1 2.9 2.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

11/12/10 2.4 2.0 --- --- 5.8 10 4.8 3.6 1.9 1.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

11/19/10 2.9 1.5 --- --- 16 21 4.4 2.9 4.9 1.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

11/22/10 1.5 1.2 --- --- 12 17 3.3 2.6 2.4 1.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

11/22/10 --- 1.1 --- --- --- 16 --- 2.8 --- 1.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

12/03/10 16.0 5.3 --- --- 35 14 4.1 2.3 17 6.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

12/10/10 2.5 1.2 --- --- 3.1 6.2 --- --- 3.4 1.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

12/15/10 3.3 1.4 --- --- 5 5 --- --- 2.9 1.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

12/22/10 5.7 <1.0 --- --- 3.6 3.2 --- --- 2.6 1.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

12/29/10 1.6 1.1 --- --- 3 3.2 2.7 1.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

01/07/11 8.2 2.9 --- --- --- --- --- --- 10 2.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

01/14/11 2.5 1.5 --- --- --- --- --- --- 2.6 1.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

01/21/11 5.1 1.9 --- --- --- --- --- --- 6.8 2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

01/28/11 4.9 1.8 --- --- --- --- --- --- 6.9 2.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

02/04/11 5.2 2.4 --- --- --- --- --- --- 5.5 2.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

02/10/11 1.8 1.1 --- --- --- --- --- --- 2.9 1.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

02/18/11 1.6 1.9 --- --- --- --- --- --- 2 2.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

02/25/11 4.2 4.2 --- --- --- --- --- --- 15 12 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

03/04/11 4.5 2.8 --- --- --- --- --- --- 6.8 5.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

03/09/11 --- --- --- --- --- --- --- --- --- --- --- --- 100 27 98 35 --- --- 88 30 190 81 270 230 storm sample

03/10/11 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 32 11 110 14 120 61 storm sample

03/11/11 21.0 9.5 --- --- --- --- --- --- 20 8.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

03/15/11 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 96 29 96 14 --- --- storm sample

03/18/11 6.5 3.2 --- --- --- --- --- --- 8.7 7 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

03/18/11 6.4 3.1 --- --- --- --- --- --- 9.3 6.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

03/25/11 3.8 4.1 --- --- --- --- --- --- 4.3 3.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

03/25/11 3.7 4.1 --- --- --- --- --- --- 5 3.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

03/28/11 --- --- --- --- --- --- --- --- --- --- 190 250 --- --- --- --- --- --- 120 31 79 16 --- --- storm sample

04/01/11 6.7 3.9 --- --- --- --- --- --- 6.7 5.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

04/05/11 --- --- --- --- --- --- --- --- --- --- 340 180 --- --- --- --- --- --- --- --- --- --- --- --- storm sample

04/08/11 7.9 3.9 --- --- --- --- --- --- 6.7 4.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

04/15/11 2.4 1.8 --- --- --- --- --- --- 4.1 3.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

04/16/11 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 88 44 23 12 120 32 280 390 storm sample

04/20/11 24.0 28.0 --- --- --- --- --- --- 28 34 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

04/29/11 16.0 6.6 --- --- --- --- --- --- 13 6.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

04/29/11 15.0 6.8 --- --- --- --- --- --- 14 6.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

05/04/11 --- --- --- --- --- --- --- --- --- --- 27 7.2 --- --- --- --- --- --- --- --- --- --- --- --- storm sample

05/06/11 5.0 3.1 --- --- --- --- --- --- 7.2 5.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

05/12/11 1.6 1.9 --- --- --- --- --- --- 3.2 4.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

05/18/11 1.9 1.9 --- --- --- --- --- --- 3.4 2.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

05/27/11 3.2 1.2 --- --- --- --- --- --- 7.4 4.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

05/27/11 2.2 1.8 --- --- --- --- --- --- 6.5 4.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

06/03/11 1.2 1.1 --- --- --- --- --- --- 4.1 3.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/09/11 1.1 1.4 --- --- --- --- --- --- 2.9 3.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/16/11 6.9 3.4 --- --- --- --- --- --- 11.0 7.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

06/21/11 2.2 2.8 --- --- --- --- --- --- 4.3 1.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/01/11 2.3 3.4 --- --- --- --- --- --- 3.5 2.8 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/08/11 2.2 2.2 --- --- --- --- --- --- 3.7 3.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/15/11 49.0 32.0 --- --- --- --- --- --- 54.0 34.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/15/11 --- 32.0 --- --- --- --- --- --- --- 35.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

07/22/11 1.8 3.8 --- --- --- --- --- --- 1.9 3.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

07/29/11 3.7 3.8 --- --- --- --- --- --- 2.9 2.2 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/02/11 3.0 2.9 --- --- --- --- --- --- 3.6 2.4 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/12/11 3.9 3.4 --- --- --- --- --- --- 4.2 2.6 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/19/11 2.1 1.1 --- --- --- --- --- --- 2.5 3.1 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

08/26/11 3.8 4.5 --- --- --- --- --- --- 2.2 2.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/02/11 1.4 2.0 --- --- --- --- --- --- 1.4 1.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/02/11 --- 3.3 --- --- --- --- --- --- --- 1.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

09/12/11 3.8 2.9 --- --- --- --- --- --- 4.8 4.7 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/16/11 2.1 <1.0 --- --- --- --- --- --- 4.9 3.9 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/16/11 --- <1.0 --- --- --- --- --- --- --- 4.3 --- --- --- --- --- --- --- --- --- --- --- --- --- --- duplicate sample

09/16/11 --- --- --- --- --- --- --- --- --- --- 12 4.6 --- --- --- --- --- --- --- --- --- --- --- --- storm sample

09/23/11 70.0 34.0 --- --- --- --- --- --- 61.0 29.0 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

09/23/11 --- --- 320 170 --- --- --- --- --- --- 170 100 --- --- --- --- 210 78 --- --- --- --- --- --- storm sample

09/27/11 --- --- 44 7.5 --- --- --- --- --- --- 13 4.6 --- --- --- --- --- --- --- --- --- --- --- --- storm sample

09/30/11 2.3 1.9 --- --- --- --- --- --- 3.1 2.5 --- --- --- --- --- --- --- --- --- --- --- --- --- --- weekly duplicate

Sept Avg 15.9 8.8 182.0 88.8 --- --- --- --- 15.0 6.7 65.0 36.4 --- --- --- --- 210.0 78.0 --- --- --- --- --- ---

Sept Max 70.0 34.0 320.0 170.0 --- --- --- --- 61.0 29.0 170.0 100.0 --- --- --- --- 210.0 78.0 --- --- --- --- --- ---

LCD LCU SW-1 SW-2 SW-3 SW-5 SW-8A SW-11 Notes: Sample 

Date

SW-6 Unnamed Tributary (SW-6A) RRU SW-8
Attachment 2- Minimum and Maximum turbidity measures during phase II of the construction.
Phase II-Cleveland Airport construction: Turbidity Max & Min

Discharge # 

LCD

SW 1

SW 2

SW 3

SW 4

SW 5

SW 6

SW 7

SW 8

SW 8A

Turbidity Highs/Lows Comments

High: 70 ; Low: 1.1

High: 340 ; Low: 12

High: 100 ; Low: ND

High: 450 ; Low: 98

High: ND ; Low: ND

High: 210 ; Low: 88

High: 320 ; Low: 35

High: ND ; Low: ND

High: 120 ; Low: 23

High: 190 ; Low: 79

SW 9

SW 10

No Discharge: Sediment basin closed resulting in closed Outfall 7

Sediment basin closed ; no PTS used, no sediment basin 

SW 11

High: ND ; Low: ND Phase I(relocation of Tasso road). No land disturbed, chance of 

High: ND ; Low: ND having offside flow was small so No Discharge

Treatment wasn’t in place when rain first started 

resulting in color contrast in water and high turbidity

# of meas. reported: 6; 03/28/2011-09/27/2011

# of meas. reported: 52; 10/29/2010-09/30/2011

# of meas. reported: 1; On 03/09/2011; no PTS, no sed. basin

# of meas. reported: 2; On 07/13/2010 & 03/09/2011. 450 

NTU was obtained during Phase 1 (no PTS installed yet) 

# of meas. reported: 2; On 04/16/11 & 09/23/11; PTS installed

No treatment was applied to water flow from sediment basin 4

Treatment applied to water flor from sediment basin 2

# of meas. reported: 5; 11/2010-09/2011

During Phase I (relocation of Tasso road); no PTS used, no 

basin; # of meas. reported: 5; 03/09/2011-04/16/2011 

High: 280 ; Low: 120 PTS installed and used; # of meas. reported: 3; 

03/09/11-04/16/11

No Discharge

LCU High: 61 ; Low: 1.4 # of meas. reported: 52; 10/29/2010-09/30/2011 
Attachment 3- Overall Erosion Control Plan (Final Stage) of the Cleveland Municipal Airport 

Construction Site. Please refer to this map to see a representation of sediment basins locations 

relative to outfalls and sites locations. 

Attachment 4- Location of Outfalls & Acreage Summary on site

Attachment 4 identifies the location of each outfall and summarizes the number of acres for 

Phase II of the construction site. (e.g: SW 3 → Sediment Basin 1 → Site 2: Outfall 3).
Location of Outfalls & Acreage Summary

Outfalls SW Outfall: Sediment

Basin Number

Acres of 

land

Outfall 1 SW1: 6 21.7 Downstream of sed. basin 6 approximately 

250' upstream from LCD

Outfall 2 SW2: No Basin 1.8 Culvert under Michigan Avenue

Outfall 3 SW3: 1 32 Culvert under Michigan Avenue

Outfall 4 SW4: No Basin 4.7 Culvert under Michigan Avenue

No Outfall Sediment Basin 5 23.7 Sed. Basin 5; approximately 4,200' upstream from SW5

Outfall 6A SW6A: 2&4 67.6 Approximately 950' upstream from confluence

Outfall 6 SW6: 2 30 Downstream of sed. basin 2; just upstream of SW-6A;

Valley Filling area

Outfall 7 SW7: No Basin 5

Outfall 8 SW8: No Basin 5.8 

Outfall 10 SW10: 7 14.5 Stabilized at end of Ph 2; sed. basin removed, 3.7ac 

drains to outfall

Outfall Location/Description

Outfall 8A SW8A: No Basin 

Outfall 9 SW9: 5A 

Outfall 11 SW11: 8 18 Stabilized at end of Ph 2; sed. basin removed, 2.5ac

drains to outfall

Outfall 5 SW5: 3 88

1.8

10

Downstream of sed. basin 3, approximately 750‘

upstream from LCD

Stabilized at end of Ph 1; sed. basin removed

Stabilized at end of Ph 1; sed. basin removed

Culvert under Dry Valley Road

Roadside ditch draining south along Dry Valley Road

No Outfall LCD 266.5 Downstream in-stream monitoring of Little Chatata Creek

No Outfall LCU na Upstream in-stream monitoring of Little Chatata Creek
Attachment 5- Drawing of sediment basins discharging to specific outfalls or culverts based on 

Attachment 3. Note: not all outfalls have sediments basins. E.g: Outfalls 7 and 8 were closed 

because their sediment basins were removed.
Sediment 

Basin 6

LCU

Outfall 1

Little Chatata Creek

Outfall 2: 

Site 6

Road side ditch

Culvert under Michigan 

Avenue

Outfall 3: 

Site 2

Sediment 

Basin 1

Outfall 4: near 

Michigan Avenue

Outfall 5: near 

construction exit

Sediment 

Basin 3

Outfall 6: near Valley 

Filling Area

Sediment 

Basin 2

Unnamed 

Tributary

LCD

Under Dry Valley Road

Outfall 11

Sediment 

Basin 8

Sediment 

Basin 5A Sedimen 

Basin 7

Outfall 9: near 

Tasso Road Phase I

Outfall 10: 

Site 4

Outfall 8

Outfall 8A: near 

Tasso Rd Phase I
Attachment 6- PTS & BMPs used around outfalls.
CLEVELAND AIRPORT

PHASE II: Treatment Train of BMPs for each Outfall.

OUTFALL 1 (SW-1): 

 Undisturbed stream buffer (Little Chatata Creek) 

 Temp. double silt fence w/ wire backing and straw wattles 

 Straw wattle filter ring below outlet of temp sediment basin #6 

 Rip-Rap outlet protection 

 Temp. sediment basin #6 w/ faircloth skimmer outlet structure 

 Slopes/berms of sediment basin seeded and matted once constructed 

 Fill slopes terraced, and permanently seeded and matted as constructed 

 Temp. treatment ditch w/ erosion control matting, check dams, polymer treated jute mesh, 

and floc logs 

 Diversion berms 

 Temp. slope drain with floc logs 

 Temporary and permanent stabilization of up-gradient areas 

OUTFALL 2 (SW-2): **No construction stormwater from phase 2 (area stabilized in phase I) 

 Rock filter ring/check dam at culvert under Michigan Ave 

 Undisturbed grassy area 

 Temp. silt fence w/ wire backing

 No sediment basin required 

OUTFALL 3 (SW-3): 

 Rock filter ring/ check dam at culvert under Michigan Avenue

 Undisturbed roadside ditch 

 Rock stabilized construction exit

 Silt fence w/ wire backing and straw wattle

 Rock filter ring below outlet of temp sediment basin #1 

 Rip-Rap outlet protection 

 Temp. sediment basin #1 w/ faircloth skimmer outlet structure 

 Slopes/berms of sediment basin seeded and matted once constructed

 Diversion berm/channel seeded and matted once constructed 

 Temp. treatment ditch w/ erosion control matting, check dams, polymer treated jute mesh, 

and floc logs 

 Fill slopes permanently seeded and matted as constructed 

 Temporary and permanent stabilization of up-gradient areas 
OUTFALL 4 (SW-4): 

 Rock filter ring/check dam at culvert under Michigan Ave

 Undisturbed grassy area/roadside ditch 

 Silt fence w/ wire backing and straw wattle 

 Diversion berm/channel seeded and matted once constructed

 Temporary and permanent stabilization of up-gradient areas 

 No sediment basin required 

OUTFALL BELOW LCU: 

 Undisturbed stream buffer (Little Chatata Creek) 

 Temp. double silt fence w/wire backing and straw wattles 

 Undisturbed grassy area/swale 

 Rip-rap outlet protection 

 Temp. sediment basin #5 w/ faircloth skimmer outlet structure 

 Slopes/berms of sediment basin seeded and matted once constructed

 Temp. treatment ditches w/ erosion control matting, check dams, polymer treated jute mesh, 

and floc logs

 Diversion berms/rock check dams 

 Temporary and permanent stabilization of up-gradient areas 

OUTFALL 5 (SW-5): 

 Undisturbed stream buffer (Little Chatata Creek) 

 Temp. double silt fence w/ wire backing and straw wattles 

 Undisturbed grassy area/swale

 Rip-rap outlet protection 

 Temp. sediment basin #3 w/ faircloth skimmer outlet structure. Basin #3 is a multi cell basin 

 Slopes/berms of sediment basin seeded and matted once constructed

 Fill slopes terraced and permanently seeded and matted as constructed 

 Diversion berms 

 Temp. treatment ditches w/ erosion control matting, check dams, polymer treated jute mesh, 

and floc logs 

 Temporary and permanent stabilization of up-gradient areas 
OUTFALL 6 (SW-6) – FOR SEDIMENT BASIN #4: 

 Temp. rock check dam/berm prior to unnamed tributary 

 Rock/Grass lined channels 

 Silt fence with wire backing and straw wattles 

 Rip-rap outlet protection 

 Temp. sediment basin #4 w/ faircloth skimmer outlet structure and a permanent pool 

 Slopes/berms of sediment basin seeded and matted once constructed 

 Fill slopes terraced, and permanently seeded and matted as constructed 

 Diversion berms 

 Temp. slope drains with floc logs 

 Temporary and permanent stabilization of up-gradient areas 

OUTFALL 6 (SW-6) – FOR SEDIMENT BASIN #2: 

 Temp. rock check dam/berm prior to unnamed tributary

 Roadside ditch permanently seeded and matted 

 Silt fence with wire backing and straw wattles 

 Rip-rap outlet protection 

 Temp. sediment basin #2 w/ faircloth skimmer outlet structure (SW-6A). Basin #2 is a multi 

cell basin 

 Slopes/berms of sediment basin seeded and matted once constructed 

 Fill slopes terraced, and permanently seeded and matted as constructed 

 Temp. treatment ditch w/ erosion control matting, check dams, polymer treated jute mesh, 

and floc logs 

 Diversion berms 

 Temp. slope drains with floc logs 

 Temporary and permanent stabilization of up-gradient areas 

OUTFALL 7 (SW-7): **No construction stormwater from phase 2 (area stabilized in phase 1) 

 Sediment basin was removed at end of phase 1 

OUTFALL 8 (SW-8): **No construction stormwater from phase 2 (area stabilized in phase 1) 

 Temp. rock check dam at roadside ditch at Dry Valley Road 

 Sediment basin was removed at end of phase 1 

OUTFALL 8A (SW-8A): **No construction stormwater from phase 2 (area stabilized in 

phase 1) 

 Temp. rock check dam at culvert under Dry Valley Road 

 Upstream portion of watershed is being diverted into temporary sediment basin #5A 
OUTFALL 9 (SW-9): 

 Temp. rock check dam at culvert under Dry Valley Road 

 Undisturbed roadside ditch and grass areas 

 Silt fence with wire backing 

 Rip-rap outlet protection

 Temp. sediment basin #5A w/ faircloth skimmer outlet structure o Sediment basin has never 

discharged over the course of the project 

 Slopes/berms of sediment basin seeded and matted once constructed 

 Diversion berm/channel seeded and matted once constructed

 Temporary and permanent stabilization of up-gradient areas 

OUTFALL 10 (SW-10): 

 Undisturbed roadside ditch and grass areas 

 Rock stabilized construction exit 

 Silt fence with wire backing 

 Rip-rap outlet protection 

 Temp. sediment basin #7 w/ faircloth skimmer outlet structure o Sediment basin has never 

discharged over the course of the project 

 Slopes/berms of sediment basin seeded and matted once constructed 

 Fill slopes permanently seeded and matted as constructed 

 Diversion berms/channel 

 Temp. treatment ditch w/ erosion control matting, check dams, polymer treated jute mesh, 

and floc logs 

 Temporary and permanent stabilization of up-gradient areas 

 Sediment basin #7 was removed/ backfilled and stabilized with permanent seeding and

matting during phase 2 once the contributing drainage area had been reduced to less than 5 

acres and permanently seeded and matted 

OUTFALL 11 (SW-11): 

 Rock filter ring/check dam at culvert under Dry Valley Road 

 Undisturbed roadside ditch and grass areas

 Silt fence with wire backing, straw wattles, and straw bales

 Rip-rap outlet protection 

 Temp. sediment basin #8 w/ faircloth skimmer outlet structure 

 Slopes/berms of sediment basin seeded and matted once constructed

 Fill slopes terraced, and permanently seeded and matted as constructed

 Diversion berms/channel 

 Temp. treatment ditch w/ erosion control matting, check dams, polymer treated jute mesh, 

and floc logs 

 Temporary and permanent stabilization of up-gradient areas

 Sediment basin #8 was removed/ backfilled and stabilized with permanent seeding and 

matting during phase 2 once the contributing drainage area had been reduced to less than 5 

acres and permanently seeded and matted 
Attachment 7- Cleveland Airport site pictures
Pictures from the Cleveland Airport’s site

Fig.1a- Cleveland Airport’s site Fig.1b- Cleveland Airport construction site

Fig. 1c- Little Chatata Creek Fig. 1d- Little Chatata Creek

Fig. 1e- Little Chatata Creek Fig. 1f- Little Chatata Creek
Fig. 2a- Culvert discharging to L. Chatata Creek Fig. 2b- top soil covered with mulches

Fig. 2c- Slope drain with berm & rip-rap Fig. 2d- Unnamed Tributary w/ rock check dams

Fig. 2e- New 706B floc logs from the Airport site Fig. 2f- Used flog logs from a TDOT site
Fig. 3a- Little Chatata Downstream (LCD) Fig. 3b- Manta2 sensor monitors LCD & LCU

Fig. 3c- LCD with Manta 2 inside the stream Fig. 3d- Sediment Basin 2- multi cell basin

 Turbid water on right side, clean water on left

Fig. 3e- Sediment Basin 3-multi cell basin Fig. 3f- ISCO 6712 Portable Sampler

 Used to monitor discharges from sed. basin 3
Fig. 4a- ISCO sample bottle case Fig. 4b- Sediment Basin 4- constant ground 

 - Fills up to 24 bottles water infiltration

Fig. 4c- Sediment Basin 4 Fig. 4d- Sediment Basin 6

Fig. 4e- Faircloth Skimmer inside Sediment Basin 6