Changes in Water Chemistry Changes in Water Chemistryin in Adiron - - PowerPoint PPT Presentation

Changes in Water Chemistry Changes in Water Chemistryin in Adiron Adirond da ack Lakes an ck Lakes and dS St treams: reams: A Statu A Status sReport Report

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NYS NYSE ER RD DA En A Envir viro

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nm men ental Mo tal Mon ni ito toring ring, ,Evalu Evalua atio tion n, ,& & Protec Protection tion O Oc ct to

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be er r7-8, 7-8, 2003 2003 Alban Albany y, NY , NY

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Physical ical, bi , biol

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ic ca al l an and che d chem mical ical s su ur rv vey eys s o

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n 14 1469 69 wa wat te er rs s. .

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Exten tent t o

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f l la ak ke e a ac cid idifi ific ca at tion. ion.

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1990 90 I In nt te erpre rpretive tive Re Repo port. rt.

1984-1987 1984-1987

LTM Lake Classification LTM Lake Classification

(Hydrology, Flowpath, Chemistry, Watershed Characteristics)

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Th hick ick T Till/Ca ill/Carbonat rbonate e 5 5 la lakes kes

„ „ Medium

Medium T Till ill kes kes 13 la 13 la

„ „ T

Th hin T in Till ill 2 27 7 s lake lakes

„ „ Mounded

Mounded e ee ep pa S S ag ge e 7 lakes 7 lake s TO TOTAL TAL 52 52lakes lakes

ALSC Lo ALSC Long ng Te Term Mo rm Monit nito

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ring Pro Prog gra ram m 19 1992 92-

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prese esen nt t

* 5 * 52 2 lake lakes, s, 3 re 3 s st treams ams * s * summe ummer r s su urvey w/E rvey w/EP PA over the Northe A over the Northea as stern tern U US S * pe * pee er revie r review w and d h a n outreac

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ev valuat aluate e the the e ef ff fe ec ct ti iv ven ene es ss of s of th the C e CA AA AA A

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f 199 90 e 19

NYSERDA’s NYSERDA’s EMEP Fiel d Stations EMEP Fiel d Stations Research Sites Research Sites

ALSC scientific associates ALSC scientific associates

C C. .T T. . Dr ri is sco col ll l, , K K. . Dr ris isco coll ll, S , Sy yr ra acu cus se e Univ D D Un ive er rs si it ty y G G. .B. B. L La aw wr re en nce ce, D , D. . Burn ns s, Bu r ,U. U.S S. .G Ge eol

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ic ca al lS Su ur rv ve ey y M. M.J. Mit

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chell, SUNY hell, SUNY ESF ESF G. G. Sistla Sistla, , DE C C DAR Ai DAR Air R r Rese search arch DE e H.

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Simonin nin, ,DEC DEC H Ha abita bitat Uni t Unit t, ,Rome Rome S. S. Pau Paul lse sen, J. Sto n, J. Stod ddard, US dard, US EPA EPACo Corva rval llis lis

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atso tson n, J. , J.Jo Josep seph h, NY , NYSE SERD RDA A G. G.Lov Love ett, tt,C. C. C Ca anha nham m, I , In nst. st.E Ec cosy

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stem tem Studi Studie es s

1992-2000 Results in 48 Lakes 1992-2000 Results in 48 Lakes

„ „ Extens

Extensiv ive impro e improv vemen ement t i in nSO SO4 4

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Varied improv ried improvemen ement t in NO3 in NO3

„ „ Impro

Improv ved ANC in ed ANC in 29 lak lake es s 29

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De ecre crea as se ed d toxi 28 8l la to xic Al c Al i in n 2 ak ke es s

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Improv ved pH i ed pH in n 18 la 18 lakes, kes, 2 2 la lakes dec kes declin linin ing g

Remember… Remember…

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Trend data data do do no not s t sh ho

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wl la ake rec ke reco

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ve ery ryis is c co

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ly that i is iss st th at it t ta ar rtin ting g. .

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The r e r a ate of la te of lake ke ch chemistry emistry improv improvement ement is is sl lo s ow w. .

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Current rrent leve vels ls of pH le H

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,ANC and ANC andAl Al s st ti il ll l c cr ritic itical al in inman many yl la akes. kes.

i isheries sheries Survey Survey C Co

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mparis sons

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F F 198 4-2003 3

Changes in Species Richness For 35 Waters With Repeat Surveys

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In ncr cre ea as se ed d R Ri ich chn ne ess ss 17 17

„ „ No

No Chan ng ge e Cha 14 14

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Decre crea ase sed d Ric Rich hn ne ess ss 4 4

EPA LTM/TIME Surveys EPA LTM/TIME Surveys

Press release: Press release:

Eig Eight ht percent percent of lakes in the

• f lakes in the

Adirondack are Adirondack are currently acidic, currently acidic, do down wn fro from m 13 13 pe perc rcent ent i in n t th he e early 1990s. early 1990s.

F CON CONFUSIO USION abo N abou ut te t terms and rms and survey size survey size

„ „ ‘

‘A Acid cidi ic’ c’ lake defi lake defined a ned as s ANC< 0. ANC< 0.

„ „ Adiro

Adiron nda dack lak ck lake epo populat pulati ion defi

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ned as l la akes kes with wi thsu surf rfac ace areas > 1 e areas > 10 0ac acres, res,or

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1,2 1,290 la 90 lakes kes tot tota al. l.

„ „ Samp

Sampl le e sit si te es = 4 s = 43 3l la ake kes, s, s su ummer. mmer.

Buck Creek Buck Creek

Buck Creek

A N C (ueg/L) A N C (ueg/L) A N C (ueg/L) 50

• 50

100

Bald Mtn Brook

50

• 50

600

Fly Pond Outlet

500 400 300 200 100

10-91 04-92 10-92 04-93 10-93 04-94 10-94 04-95 10-95 04-96 10-96 04-97 10-97 04-98 10-98 04-99 10-99 04-00 10-00 04-01

Stre Strea am ms s1991 1991-200

• 2001

1 Ac

Acid N id Ne eu ut tralizin ralizing Ca g Capaci pacity ty

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2 4 6 8 10 12 14 16 18

1995 1991-2001 Average

Flow (m sec-1 )

Independence River Flow Independence River Flow 1991-2001 1991-2001

EPA Cl EPA Clean Air Markets Divisi ean Air Markets Division

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„ „ ALSC website

ALSC website

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Stat te of e of Sci Scie ence nce R Re ep po

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