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How Cle an is Your Wate r
Citizen Water Monitoring Network Results 2018
Andres Ripley and Chris Hirsch
Wate r she d Ove r vie w
- Ne po nse t F
ig ure s
– 30 mile s lo ng – 120 sq ua re mile s – 14 to wns
How Cle an is Your Wate r Citizen Water Monitoring Network Results - - PowerPoint PPT Presentation
How Cle an is Your Wate r Citizen Water Monitoring Network Results - - PowerPoint PPT Presentation
How Cle an is Your Wate r Citizen Water Monitoring Network Results 2018 Andres Ripley and Chris Hirsch Wate r she d Ove r vie w Ne po nse t F ig ure s 30 mile s lo ng 120 sq ua re mile s 14 to wns Citize n Wate r
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Citize n Wate r Monitor ing Ne twor k (CWMN)
- Since 1995
- 50+ Volunteers
- 41 sites
– 10 mainstem – 31 tributaries
- May - October
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Data Colle c te d
- Volunteers/ NepRWA Staff
– Physical attributes – Weather conditions – pH – Dissolved oxygen
- MWRA
– E.coli – Total Phosphorous – Total Nitrogen – Ammonia – Chlorophyll a.
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T he F
- c us of T
- night
pH Dissolved Oxygen E.coli Phosphorus
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pH
Values between 6.5 and 8.3 are considered healthy for the Neponset
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2 1 4
Average Year 2008-2018
Poor <49% Moderate (50-74%) Good 75-94% Outstanding >95%
pH Re sults
1 5
This Year 2018
pH was slightly better than average in 2018
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T
- p 5 Be st and Wor
st pH!
Ganawatte Farm Pond, Walpole.
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Dissolve d Oxyge n
The “air” fish breathe under water
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Dissolve d Oxyge n
Average Year 2008-2018
6 4 13
Poor < 50% Moderate 50-74% Good 75-94% Outstanding >95%
6 5 4
This Year 2018 2018 was above average for dissolved oxygen
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Be st and Wor st Dissolve d Oxyge n
Traphole Brook, Norwood.
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Phosphor us
You’r e fe r tilizing mor e than just your lawn
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Phosphor us
7 18 6
Average Year 2008-2018
Poor < 25 % Moderate 25 - 49 % Good 50 - 74 % Outstanding > 75 %
12 12 11
This Year 2018 2018 had fewer “great” sites, and more “really bad” sites compared to average
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5 Best and Worst Phosphorus
Crack Rock Pond, Foxborough.
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E .c oli
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E .c oli
10 17 9
Poor <50% Moderate 50-74% Good 75-90 Outstanding >90
16 20 3
This year 2018 Average Year 2008-2018 2018 had fewer “great” sites, and more “really bad” sites compared to average
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5 Be st and Wor st E .c oli
Turner’s Pond, Walpole.
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Cr unc hing the Numbe r s
Is the Neponset improving or declining?
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Dissolve d Oxyge n
Average Year 2008-2018
6 4 13
Poor < 50% Moderate 50-74% Good 75-94% Outstanding >95%
6 5 4
This Year 2018 2018 was above average for dissolved oxygen
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5 10 15 20 25 30 2006 2008 2010 2012 2014 2016 2018 NUMBER OF SITES YEAR
L O NG T ERM DO T REND ’07- ’18
Poor Moderate Good Outstanding
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Do Your par t to Inc r e ase DO
Use less water in the summer Let stream vegetation grow Reduce or eliminate fertilizer use
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Phosphor us
7 18 6
Average Year 2008-2018
Poor < 25 % Moderate 25 - 49 % Good 50 - 74 % Outstanding > 75 %
12 12 11
This Year 2018 2018 had fewer “great” sites, and more “really bad” sites compared to average
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5 10 15 20 25 30
2006 2008 2010 2012 2014 2016 2018 NUMBER OF SITES YEAR
L O NG T ERM PHO SPHO RUS T RENDS '07- '18
Poor Moderate Good Outstanding
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Do Your Par t to Re duc e Phos.
Test your soil before using fertilizers Report construction runoff to your town DPW Never dump yard waste in streams of wetlands
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E .c oli
10 17 9 5
Poor <50% Moderate 50-74% Good 75-90 Outstanding >90
16 20 3 2
This year 2018 Average Year 2008-2018 2018 had fewer “great” sites, and more “really bad” sites compared to average
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5 10 15 20 25 2006 2008 2010 2012 2014 2016 2018
NUMBER OF SITES YEAR
L O NG T ERM E.C O L I T RENDS '07- '18
Outstanding Good Moderate Poor
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Do Your Par t to Re duc e E .c oli
Pick up after your pets and dispose of it in a trash can
Service your septic system regularly
Let the grass grow long around your ponds
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Stor mwate r
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Dry VS We t We a the r 2018
0.00000 0.02000 0.04000 0.06000 0.08000 Wet Dry
Total Phosphorus (mg/l)
1000 2000 3000 4000 Wet Dry
- E. Coli (cfu)
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Hillar y Waite
Town of Milton Environmental Coordinator Neponset Stormwater Partnership Outreach Committee Member Stormwater Committee Member Town of Ashland Former EPA First team All Neponset Environmental All-Star
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POLLUTION PREVENTION
(WHAT DOES THE STORMWATER FEE PAY FOR ANYWAY?)
Hillary Waite Milton DPW Environmental Coordinator
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What is stormwater?
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Polluted water goes straight to rivers and streams
Diffuse sources of pollution Insufficient
- pportunity
for water to infiltrate
Reduce pollution
Good housekeeping Outreach and education Investigate potential IDs and hotspots Create infiltration
- pportunities
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Investigating Illicit Discharges
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Structural BMPs create infiltration opportunities
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Wendell Park Tree Filter Boxes
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Wendell Park Tree Filter Boxes $197,000
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Police Station Infiltration Cells $108,000 (estimated)
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What else is in the works?
$79,170 $227,922 $143,283
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How do we pay for it? With an Enterprise fund
Tier Fee Impervious Area (Square feet) Tier 1 $32 0 – 2,075 Tier 2 $44 2,076 – 2,675 Tier 3 $61 2,676 – 4,225 Tier 4.1 $110 4,226 – 8,364 Tier 4.2 $205 8,365 – 15,895 Tier 4.3 $468 15,896+
$1.88 per 100 square feet
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- Find areas of high
pollution
- Examine potential
for stormwater improvements
- Eliminate illicit
discharges
Use information to…
- Design potential retrofits
- Look for available funding
Use plans to…
- Strategize construction
- Apply for grants
- Construct BMPs
Repeat!
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Thank you!
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Join the CWMN T e am!
- Two sites that need coverage
– NER080 – Norwood – MOB001 – Dedham
- Fill in samplers