[PPT] - 2010-11 Presumpscot River Lower Main Stem Monitoring Cayce Dalton PowerPoint Presentation

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

2010-11 Presumpscot River Lower Main Stem Monitoring

Cayce Dalton FB Environmental Associates 97A Exchange St, Portland ME 04101

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Project Overview

Coalition interested in reclassification C to B.
Monitored dissolved oxygen in Presumpscot R. lower main

stem, with help from CBEP and Sarah Hayes (USM student).

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Watershed Overview

Sampling between

Cumberland Mills Dam and head of tide / falls.

Map: Friends of Presumpscot R.

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Monitoring Locations

4839538 4842549 19T 0393146 19T 0396401 P1 – Downstream P2 – Upstream

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Site P2 (US 302 Bridge)

Site P2, upstream from US Route 302 bridge (seen at extreme right) at the Portland-Westbrook municipal boundary. Marker float for deployment site at lower left of photo.

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Site P1 (Falmouth Spur, Turnpike)

Looking downstream to site P1, with deployment site marked by a small float. Maine Turnpike Falmouth Spur bridge in background.

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Monitoring Methods

Sondes deployed

near stream bottom

15 min frequency
DO (conc. & %)
Temp & sp. cond.
Approx. depth

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Monitoring Timeline

3 deployments
2 sites
2010:

Late July – Early Oct.

2011:

Mid July – Late Sept.

9/27/2011 10:32 9/27/2011 11:47 Retrieved 34 days 8/24/2011 12:32 8/24/2011 14:17 Deployed 8/24/2011 11:32 8/24/2011 13:32** Retrieved 20 days 8/4/2011 11:17 8/4/2011 14:17** Deployed 8/4/2011 10:02 8/4/2011 12:17 Retrieved 22 days 7/13/2011 13:17 7/13/2011 15:02 Deployed Duration P2 - Upstream P1 - Downstream Action ** DO probe failure during deployment 10/8/2010 14:00 10/8/2010 15:00 Retrieved 22 days 9/16/2010 10:45 9/16/2010 12:15 Deployed 9/16/2010 10:00 9/16/2010 11:30 Retrieved 22 days 8/25/2010 11:15 8/25/2010 12:45 Deployed 8/25/2010 10:45* 8/25/2010 12:30 Retrieved 25 days 7/30/2010 16:00* 7/30/2010 17:45 Deployed Duration P2 - Upstream P1 - Downstream Action * DO membrane punctured during deployment

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Results

Weighted cage to keep sonde near stream bottom.

2010 Data 2010 Data

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Results

Weighted cage to keep sonde near stream bottom.

2010 Data 2010 Data

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

2011 Data 2011 Data

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

2011 Data 2011 Data

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental 7ppm DO

Dissolved Oxygen (ppm)

2010 Data 2010 Data

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental 7ppm DO

Dissolved Oxygen (ppm) Outliers, considered measurement errors.

2010 Data 2010 Data

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental 7ppm DO

Dissolved Oxygen (ppm)

Big picture: Dissolved oxygen generally good, Was close to 7 ppm briefly.

2010 Data 2010 Data

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

2011 Lower Presumpscot River DO, Depth, Rain, Sp. Conductivity DRAFT

1 2 3 4 5 6 7 8 9 10

7/27/11 7/28/11 7/29/11 7/30/11 7/31/11 8/1/11 8/2/11 8/3/11

Time DO mg/L

1 2 3 4 5 6 7 8 9 10

Depth (ft) Rain (in) DO P2 Upstream DO P1 Downstream P2 SpCond Depth (approx) P2 Depth (approx) P1 7ppm DO

2011 Data 2011 Data

Cumulative Rain (inches) and Depth (feet)

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

2011 Lower Presumpscot River DO, Depth, Rain, Sp. Conductivity DRAFT

1 2 3 4 5 6 7 8 9 10

7/27/11 7/28/11 7/29/11 7/30/11 7/31/11 8/1/11 8/2/11 8/3/11

Time DO mg/L

1 2 3 4 5 6 7 8 9 10

Depth (ft) Rain (in) DO P2 Upstream DO P1 Downstream P2 SpCond Depth (approx) P2 Depth (approx) P1 7ppm DO

2011 Data 2011 Data

DO drops on July 29 approx 12 hours before intense storm A smaller DO drop happens right after storm.

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

Next Step

If oxygen is relatively

OK, why are macroinvertebrates scoring so low?

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November 17, 2011 2010-11 Presumpscot River Lower Main Stem Monitoring FB Environmental

2010-11 Presumpscot River Lower Main Stem Monitoring Cayce Dalton - - PowerPoint PPT Presentation

2010-11 Presumpscot River Lower Main Stem Monitoring

Cayce Dalton FB Environmental Associates 97A Exchange St, Portland ME 04101

Project Overview

stem, with help from CBEP and Sarah Hayes (USM student).

Watershed Overview

Cumberland Mills Dam and head of tide / falls.

Monitoring Locations

Site P2 (US 302 Bridge)

Site P1 (Falmouth Spur, Turnpike)

Monitoring Methods

near stream bottom

Monitoring Timeline

Late July – Early Oct.

Mid July – Late Sept.

Results

Weighted cage to keep sonde near stream bottom.

2010 Data 2010 Data

Results

Weighted cage to keep sonde near stream bottom.

2010 Data 2010 Data

2011 Data 2011 Data

2011 Data 2011 Data

2010 Data 2010 Data

2010 Data 2010 Data

2010 Data 2010 Data

! " # # $ 4 < < ! " # # $ 4 < <

! " # # $ 4 < < ! " # # $ 4 < <

! " # # $ 4 < < ! " # # $ 4 < <

2011 Data 2011 Data

2011 Data 2011 Data

Next Step

OK, why are macroinvertebrates scoring so low?

Thoughts, comments, questions?

Cayce Dalton FB Environmental Associates 97A Exchange St, Portland ME 04101 cayced@fbenvironmental.com