MORPHOMETRIC DATA

Flushing Rate (yr¹)

4,174,000

1993 OLIGOTROPHIC

20.1

6.1

4,500

1.4Max. Depth (m):

Mean Depth (m):

Volume (m³):

Watershed Area (Ac.):

Shore Length (m):

BRADLEY LAKE, ANDOVER, NH

TROPHIC CLASSIFICATION KNOWN EXOTIC SPECIES

Year Trophic class

Surface Area (Ac.): 169

Elevation (ft): 828

P Retention Coef: 0.58

The Waterbody Report Card tables are generated from the DRAFT 2014 305(b) report on the status of N.H. waters, and are based on data collected from 2004-

2013. Detailed waterbody assessment and report card information can be found at www.des.nh.gov/organizations/divisions/water/wmb/swqa/index.htm

Volunteer Lake Assessment Program Individual Lake Reports

2,624

Designated Use Parameter Category Comments

Phosphorus (Total) GoodAquatic Life The calculated median is from 5 or more samples and is < indicator and > 1/2 indicator and the chlorophyll a

indicator is okay.

pH Bad >10%, with a minimum of 2, samples exceed criteria, with 1 or more by a large margin.

Oxygen, Dissolved Encouraging There are < 10 samples with 0 exceedances of criteria. More data needed.

Dissolved oxygen satura Slightly Bad There are >10% of samples (minimum of 2), exceeding criteria.

Chlorophyll-a Good The calculated median is from 5 or more samples and is < indicator and > 1/2 indicator.

Escherichia coli No DataPrimary Contact Recreation No data for this parameter.

Chlorophyll-a Very Good There are a total of at least 10 samples with 0 exceedances of indicator.

BEACH PRIMARY CONTACT ASSESSMENT STATUS

WATERSHED LAND USE SUMMARY

Fry, J., Xian, G., Jin, S., Dewitz, J., Homer, C., Yang, L., Barnes, C., Herold, N., and Wickham, J., 2011. Completion of the 2006 National Land Cover Database

for the Conterminous United States, PERS, Vol. 77(9):858-864. For larger image contact NHDES.

Escherichia coli No Data No data for this parameter.BRADLEY LAKE - CAMP MARLYN BEACH

Land Cover Category % Cover Land Cover Category % Cover Land Cover Category % Cover

Open Water 17.1

Developed-Open Space 0.51

Developed-Low Intensity 0

Developed-Medium Intensity 0.23

Developed-High Intensity 0

Barren Land 0

Deciduous Forest 32.58

Evergreen Forest 8.36

Mixed Forest 40.26

Shrub-Scrub 0.46

Grassland/Herbaceous 0

Pasture Hay 0

Cultivated Crops 0

Woody Wetlands 0.62

Emergent Wetlands 0

MORPHOMETRIC DATA

Flushing Rate (yr¹)

4,174,000

1993 OLIGOTROPHIC

20.1

6.1

4,500

1.4Max. Depth (m):

Mean Depth (m):

Volume (m³):

Watershed Area (Ac.):

Shore Length (m):

BRADLEY LAKE, ANDOVER, NH

TROPHIC CLASSIFICATION KNOWN EXOTIC SPECIES

Year Trophic class

Surface Area (Ac.): 169

Elevation (ft): 828

P Retention Coef: 0.58

The Waterbody Report Card tables are generated from the DRAFT 2014 305(b) report on the status of N.H. waters, and are based on data collected from 2004-

2013. Detailed waterbody assessment and report card information can be found at www.des.nh.gov/organizations/divisions/water/wmb/swqa/index.htm

Volunteer Lake Assessment Program Individual Lake Reports

2,624

Designated Use Parameter Category Comments

Phosphorus (Total) GoodAquatic Life The calculated median is from 5 or more samples and is < indicator and > 1/2 indicator and the chlorophyll a

indicator is okay.

pH Bad >10%, with a minimum of 2, samples exceed criteria, with 1 or more by a large margin.

Oxygen, Dissolved Encouraging There are < 10 samples with 0 exceedances of criteria. More data needed.

Dissolved oxygen satura Slightly Bad There are >10% of samples (minimum of 2), exceeding criteria.

Chlorophyll-a Good The calculated median is from 5 or more samples and is < indicator and > 1/2 indicator.

Escherichia coli No DataPrimary Contact Recreation No data for this parameter.

Chlorophyll-a Very Good There are a total of at least 10 samples with 0 exceedances of indicator.

BEACH PRIMARY CONTACT ASSESSMENT STATUS

WATERSHED LAND USE SUMMARY

Fry, J., Xian, G., Jin, S., Dewitz, J., Homer, C., Yang, L., Barnes, C., Herold, N., and Wickham, J., 2011. Completion of the 2006 National Land Cover Database

for the Conterminous United States, PERS, Vol. 77(9):858-864. For larger image contact NHDES.

Escherichia coli No Data No data for this parameter.BRADLEY LAKE - CAMP MARLYN BEACH

Land Cover Category % Cover Land Cover Category % Cover Land Cover Category % Cover

Open Water 17.1

Developed-Open Space 0.51

Developed-Low Intensity 0

Developed-Medium Intensity 0.23

Developed-High Intensity 0

Barren Land 0

Deciduous Forest 32.58

Evergreen Forest 8.36

Mixed Forest 40.26

Shrub-Scrub 0.46

Grassland/Herbaceous 0

Pasture Hay 0

Cultivated Crops 0

Woody Wetlands 0.62

Emergent Wetlands 0

This epo t as ge e ated the NH DE“ Volu tee Lake Assess e t P og a VLAP . Fo o e i fo aio o ta t VLAP at - o sa a.stei e @des. h.go

Observations Refer to Ta le 1 and Histori al Deep Spot Data Graphi s) Chlorophyll-a: Chlo oph ll le els e e e lo a d u h less tha the state edia . Visual i spe io of histo i al data i di ates hlo oph ll le els ha e e ai ed sta le si e o ito i g ega . Conductivity/Chloride: Deep spot, I let a d Outlet o du i it le els e e lo a d less tha the state edia . Visual i spe io of histo i al data i di ates Epili ei uppe ate la e o du i it le els ha e e ai ed sta le si e o ito i g ega . Total Phosphorus: Epili ei phospho us le els i eased slightl f o a d e e the highest easu ed si e o ito i g ega , ho e e epili ei phospho us

e ai ed at a lo le el a d as u h less tha the state edia . Visual i spe io of histo i al data i di ates sta le epili ei phospho us le els si e o ito i g ega . Phospho us le els i eased slightl i the etali io iddle ate la e a d the de eased slightl i the h poli io lo e ate la e . Outlet phospho us le els e e lo a d o siste t ith that easu ed i the epili io . I let phospho us le els e e slightl a o e a e age fo the staio pote iall due to a sig ii a t sto e e p io to sa pli g. Transparency: T a spa e i p o ed slightl f o a d as u h ete tha the state edia . T a spa e easu ed ith the ie s ope as slightl ete tha that

easu ed ithout a d isual i spe io of histo i al data i di ates sta le t a spa e si e o ito i g ega . Turbidity: Deep spot a d I let tu idiies e e lo hi h is a good sig o side i g a sig ii a t sto e e t o u ed p io to sa pli g. Outlet tu idit as slightl highe tha the deep spot a d I let ut as o siste t ith histo i al data fo that staio . pH: Deep spot, I let a d Outlet pH le els e e slightl less tha the desi a le a ge . - . u its, ho e e Epili ei pH i p o ed slightl i a d as the est easu ed si e . Visual i spe io of histo i al data i di ates a ia le epili ei pH si e o ito i g ega , ut also i p o i g pH si e .

Volunteer Lake Assessment Program Individual Lake reports

Bradley Lake, Andover

5 Data Summary

NH Media Values: Media alues fo spe ii pa a ete s ge e ated f o histo i lake o ito i g data. Alkali it : . g/L

Chloroph ll-a: . g/

Co du ivit : . u“/

Chloride: g/L

Total Phosphorus: ug/L

Tra spare : .

pH: .

NH Water Qualit Sta dards: Nu e i ite ia fo spe ii pa a ete s. Results e eedi g ite ia a e o side ed a

ate ualit iolaio . Chloride: > g/L h o i

E. oli: > ts/ L – pu li ea h

E. oli: > ts/ L – su fa e ate s

Tur idit : > NTU a o e atu al le el pH: et ee . - . u less atu all o u i g

Para eter Tre d E pla aio E pla aio Tre d Para eter

Chlo oph ll-a N/A Te o se ui e ea s of data e essa fo a al sis. Te o se ui e ea s of data e essa fo a al sis. N/A Co du i it

T a spa e N/A Te o se ui e ea s of data e essa fo a al sis. Te o se ui e ea s of data e essa fo a al sis. N/A pH epili io

Phospho us epili io N/A Te o se ui e ea s of data e essa fo a al sis.

Historical Water Quality Trend Analysis

Recommended Actions: Mai tai the u e t o ito i g p og a to esta lish a o p ehe si e data set to assess seaso al a d histo i al ate ualit t e ds. I ease o ito i g f e ue to o e pe o th du i g the su e to ete ep ese t seaso al a ia ilit a d i te p etaio of data. Lake ate ualit is ge e all ithi good to e elle t a ges a d ep ese tai e of Oligot ophi , o high ualit ate , o diio s. I let phospho us le els e e slightl highe tha o al follo i g a sig ii a t sto e e t a d a i di ate upst ea sou es of ut ie t polluio . A sedi e t plu e is isi le he e the I let e te s the lake i di ai g pote ial upst ea a eas of e osio a d sedi e t o ta i aio . A site alk is e o e ded to ide if pote ial a eas of e osio a d

ut ie t polluio a d to ake e o e daio s o a s to p e e t fu the sedi e t a d ut ie t i puts to the I let a d lake. The i eased f e ue a d i te sit of sto e e ts highlights the i po ta e of i i izi g i pa ts of sto ate u of f o the su ou di g ate shed. DE“’ N.H. Ho eo e ’s Guide to “to ate Ru of is a g eat esou e fo do-it- ou self sto ate p oje ts a ou d the lake. Keep up the g eat o k!

“taio Na e Ta le . A e age Wate Qualit Data fo BRADLEY LAKE

Alk. Chlo -a Co d. Total P T a s. Tu . pH

g/l ug/l u“/ ug/l tu

NV“ V“

Epili io . . . . . . .

Metali io . . .

H poli io . . .

I let . . .

Outlet . . .

5.5

5.7

5.9

6.1

6.3

6.5

6.7

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

2010 2011 2012 2013 2014 2015

pH

Co

nd

uc

tivit

y u

S/c

m

Year

Historical Trend Epilimnetic Conductivty and pH

pH

Cond