MORPHOMETRIC DATA

Flushing Rate (yr¹)

13,995,000

1982

1996 OLIGOTROPHIC

OLIGOTROPHIC

19.8

7

7,200

0.4Max. Depth (m):

Mean Depth (m):

Volume (m³):

Watershed Area (Ac.):

Shore Length (m):

PLEASANT LAKE, DEERFIELD, NH

TROPHIC CLASSIFICATION KNOWN EXOTIC SPECIES

Year Trophic class

Surface Area (Ac.): 493

Elevation (ft): 578

P Retention Coef: 0.78

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

2,240

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 Bad There are >10% of samples (minimum of 2), exceeding criteria with one or more samples considered large

exceedance.

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 Very GoodPrimary Contact Recreation Where there are no geometric means, all bacteria samples are < 75% of the geometric mean. Where there are

geometric means all single bacteria samples are < the SSMC and all geometric means are < geometric mean criteria.

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 Good There are geometric means and all geometric means are < geometric mean criteria; and there has

been a single sample exceedance. PLEASANT LAKE - VEASEY PARK BEACH

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

Open Water 20.9

Developed-Open Space 5.72

Developed-Low Intensity 0.73

Developed-Medium Intensity 0.05

Developed-High Intensity 0

Barren Land 0

Deciduous Forest 9.74

Evergreen Forest 14.84

Mixed Forest 40.54

Shrub-Scrub 1.86

Grassland/Herbaceous 0

Pasture Hay 3.79

Cultivated Crops 0

Woody Wetlands 1.49

Emergent Wetlands 0.06

This epo t as ge e ated the NH DES 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 de eased slightl f o Ju e to Jul , i eased slightl f o Jul to O to e , a d e ai ed at lo le els. The a e age hlo oph ll le el de eased f o a d as u h less tha the state

edia . Histo i al t e d a al sis i di ates sta le hlo oph ll ith high a ia ilit et ee ea s. Conductivity/Chloride: Deep spot, Cla ks Bk., Outlet, a d Wilso s Bk. o du i it a d hlo ide le els e ai ed slightl g eate tha the state edia s. Ju e o du i it le els e e highe at all staio s, pa i ula l Wilso s Bk., i di ai g that sp i g s o elt t a spo ts a u ulated salts f o i te oad sali g to t i uta ies a d the lake. Phil i k Bk. o du i it a d hlo ide le els e e e lo i Ju e hi h is a g eat sig . Histo i al t e d a al sis i di ates elai el

sta le epili ei uppe ate la e o du i it ith ode ate a ia ilit et ee ea s. Total Phosphorus: Epili ei a d Metali ei iddle ate la e phospho us le els e ai ed e lo a d u h less tha the state edia . Histo i al t e d a al sis i di ates sig ii a tl de easi g i p o i g epili ei phospho us si e o ito i g ega . H poli ei phospho us as lo i Ju e a d Jul a d i eased to ode ate le els i O to e , a d a e age h poli ei phospho us e ai ed ithi a lo a ge. Cla ks Bk. phospho us le el as ele ated i Ju e du i g lo lo o diio s a d ate as oted as lightl olo ed. Phil i k Bk. phospho us as also slightl ele ated i Ju e du i g lo lo s. Both B ooks ha e a histo of ele ated a d lu tuai g phospho us le els. Outlet a d Wilso s Bk. phospho us le els e e lo o ea h sa pli g e e t. Transparency: T a spa e easu ed ithout the ie s ope NVS as good i Ju e a d the de eased o se ed i Jul due to a e o diio s. A e age NVS t a spa e i eased i p o ed f o a d as u h ete tha the state edia . Histo i al t e d a al sis i di ates elai el sta le NVS t a spa e si e o ito i g ega . T a spa e

easu ed ith the ie s ope VS as app o i atel e ual to the NVS eadi gs i Ju e a d the i eased i p o ed to . ete s i Jul a d helped to eli i ate su fa e o diio s f o i te fe e e ith Se hi disk ie i g. The VS

t a spa e is ge e all u h ete tha NVS a d likel a ete ep ese taio of o diio s. Turbidity: Epili ei a d Metali ei tu idiies e ai ed sta le a d lo . H poli ei tu idit as ele ated i O to e a d a ele t fall lake tu o e o diio s. Cla ks Bk. tu idit as i a lo a ge fo this staio a d likel afe ted ate ith lo to ode ate olo o te t a d i h i o ga i a ids. Outlet, Phil i k Bk. a d Wilso Bk. tu idiies e e lo . pH: Epili ei a d Metali ei pH lu tuated elo the desi a le a ge . - . u its pa i ula l i O to e likel as a esult of fall lake tu o e . Histo i al t e d a al sis i di ates elai el sta le epili ei pH ith ode ate a ia ilit et ee ea s. H poli ei a d t i uta pH le els e e all less tha the desi a le a ge.

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Pleasant Lake, Deerfield

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 : . uS/

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 Sta le T e d ot sig ii a t; data highl a ia le. T e d ot sig ii a t; data ode atel a ia le. Sta le Co du i it

T a spa e Sta le T e d ot sig ii a t; data sho lo a ia ilit . T e d ot sig ii a t; data ode atel a ia le. Sta le pH epili io

Phospho us epili io I p o i g Data sig ii a tl de easi g.

Historical Water Quality Trend Analysis

Recommended Actions: Co i ue the de elop e t of a ate shed a age e t pla to ide if a d ua if polluta t loads. I ease o ito i g f e ue as e essa to help ith pla de elop e t. O e all, ate ualit is ep ese tai e of Oligot ophi , high ualit ate , o diio s a d e hope to see this o i ue. Co du i it a d hlo ide le els a e likel i pa ted i te oad sali g a i iies. E ou age lo al oad age ts to o tai a Volu ta NH Salt

Appli ato li e se th ough UNH Te h olog T a sfe Ce te ’s G ee S o P o Ce ii aio p og a . Keep up the g eat o k!

Staio Na e Ta le . A e age Wate Qualit Data fo PLEASANT LAKE

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

g/l ug/l g/l uS/ ug/l tu

NVS VS

Epili io . . . . . . .

Metali io . . .

H poli io . . .

Cla ks B ook . . .

Da Outlet I St ea . . .

Phil i k B ook . . .

Wilso s B ook . . .