2015 VLAP Berry Bay

Transcript

2015 VLAP Berry Bay
Volunteer Lake Assessment Program Individual Lake Reports
BERRY BAY, FREEDOM, NH
MORPHOMETRIC DATA
TROPHIC CLASSIFICATION
Watershed Area (Ac.): 230,326
Surface Area (Ac.):
145
Shore Length (m):
5,800
Max. Depth (m): 11.6
Mean Depth (m): 3.7
Volume (m³):
2,147,000
Flushing Rate (yr¹) 254
P Retention Coef: -0.01
Elevation (ft):
406
Year
KNOWN EXOTIC SPECIES
Trophic class
1987
OLIGOTROPHIC
2003
MESOTROPHIC
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 20042013. Detailed waterbody assessment and report card information can be found at www.des.nh.gov/organizations/divisions/water/wmb/swqa/index.htm
Designated Use
Parameter
Category
Comments
Aquatic Life
Phosphorus (Total)
Good
The calculated median is from 5 or more samples and is < indicator and > 1/2 indicator and the chlorophyll a
indicator is okay.
pH
Slightly Bad
>10% of samples exceed criteria by a small margin (minimum of 2 exceedances).
Oxygen, Dissolved
Very Good
There are a total of at least 10 samples with 0 exceedances of criteria.
Primary Contact Recreation
Dissolved oxygen satura Cautionary
There are < 10 samples with 1 exceedance of criteria. More data needed.
Chlorophyll-a
Good
The calculated median is from 5 or more samples and is < indicator and > 1/2 indicator.
Escherichia coli
No Data
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
BROAD BAY - CAMP ROBIN HOOD BEACH
Escherichia coli Very Good
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.
LEAVITT BAY - CAMP MARIST BEACH
Escherichia coli Very Good
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.
BROAD BAY - CAMP HUCKINS BEACH
Escherichia coli Cautionary
There are no geometric means and there is one single sample exceedance. More data needed.
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.
Land Cover Category
Land Cover Category
% Cover
Land Cover Category
% Cover
Open Water
3.63
Barren Land
0.63
Grassland/Herbaceous
0.36
Developed-Open Space
3.02
Deciduous Forest
23.03
Pasture Hay
0.93
Developed-Low Intensity
0.78
Evergreen Forest
20.56
Cultivated Crops
0.49
Developed-Medium Intensity
0.25
0.04
Mixed Forest
38.3
2.7
Woody Wetlands
4.62
0.6
Developed-High Intensity
% Cover
Shrub-Scrub
Emergent Wetlands
Volunteer Lake Assessment Program Individual Lake reports
Berry Bay, Freedom
5 Data Summary
Recommended Actions: Be
Ba ate ualit is ge e all ep ese tai e of oligot ophi , o high ualit ate , o diio s a d e hope to see this o i ue. Epili ei
phospho us a d hlo oph ll le els ha e de eased si e
hi h is a g eat sig . Sp i g sa pli g e ealed ele ated tu idit a d de eased ate la it follo i g sp i g
s o
elt ate a i te of hea s o a u ulaio . The a o e a e age s o fall a d sa d/salt appli aio to lo al oad a s a d d i e a s likel o t i uted to the ele ated
tu idit a d lo
ate la it . Road age ts should e e ou aged to e o e a sa d a u ulated alo g oadsides, a d to lea ul e ts a d at h asi s ate the i te
o ths to p e e t a sedi e t a d de is f o e te i g ea
st ea s a d the lake. Keep up the g eat o k!
Observations Refer to Ta le 1 and Histori al Deep Spot Data Graphi s)
 Chlorophyll-a: Chlo oph ll le els lu tuated ithi a lo a ge f o Ap il to Septe e . A e age hlo oph ll
le els de eased slightl f o
a d e e u h less tha the state edia . Histo i al t e d a al sis
i di ates elai el sta le hlo oph ll ith ode ate a ia ilit et ee ea s.
 Conductivity/Chloride: Epili ei uppe ate la e , etali ei
iddle ate la e a d h poli ei
lo e ate la e o du i it a d hlo ide le els e ai ed sta le a d lo a d e e app o i atel e ual to
the state edia . Histo i al t e d a al sis i di ates sta le epili ei o du i it si e o ito i g ega .
 Total Phosphorus: Epili ei , etali ei a d h poli ei phospho us le els also e ai ed sta le a d
lo f o Ap il to Septe e . A e age epili ei phospho us i eased slightl f o
ut as u h less
tha the state edia . Histo i al t e d a al sis i di ates elai el sta le epili ei phospho us ith
ode ate a ia ilit et ee ea s.
 Transparency: T a spa e
as lo
o se i Ap il ate sp i g s o elt a d high ate le els.
T a spa e
i eased i p o ed th ough Jul a d the de eased slightl i August a d Septe e . A e age
t a spa e
i p o ed f o
a d as ete tha the state edia . Histo i al t e d a al sis i di ates
highl a ia le t a spa e
si e o ito i g ega .
 Turbidity: Epili ei tu idit as ele ated i Ap il ate sp i g s o
elt a d du i g high ate le els.
Epili ei tu idit de eased to a lo a ge f o Ma to Septe e . Metali ei tu idit e ai ed ithi
a lo to a e age a ge o ea h sa pli g e e t. H poli ei tu idit as lo to a e age f o Ap il to August,
ut ele ated i Septe e pote iall due to the a u ulaio of o ga i o pou ds i h poli ei ate s.
 pH: Epili ei pH as ithi the desi a le a ge . - . u its a d histo i al t e d a al sis i di ates sta le
epili ei pH si e o ito i g ega . Metali ei a d h poli ei pH le els e e less tha desi a le.
Staio Na e
Ta le .
A e age Wate Qualit Data fo BERRY BAY
Alk. Chlo -a Chlo ide Co d. Total P
g/l ug/l
g/l
uS/
ug/l
Epili io
Metali io
H poli io
.
.
T a s.
NVS
.
.
.
.
VS
.
Tu .
tu
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
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: .
Historical Water Quality Trend Analysis
Para eter
Co du i it
pH epili io
Tre d
Sta le
Sta le
This epo t as ge e ated
E pla aio
T e d ot sig ii a t; data sho lo
T e d ot sig ii a t; data sho lo
a ia ilit .
a ia ilit .
the NH DES Volu tee Lake Assess e t P og a
Para eter
Chlo oph ll-a
T a spa e
Phospho us epili
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