Community Ope n House 10/ 28/ 2016 1 AGE NDA: Me e t & Gre e - PowerPoint PPT Presentation

Ma yo r K a sim Re e d T he De pa rtme nt o f Wa te rshe d Ma na g e me nt & Atla nta Me mo ria l Pa rk Co nse rva nc y Community Ope n House 10/ 28/ 2016 1

AGE NDA:  Me e t & Gre e t  Ope ning Re ma rks & I ntro duc tio ns – Distric t 8 Co unc il Me mb e r Yo la nda Adre a n – De pa rtme nt o f Wa te rshe d Ma na g e me nt, Co mmissio ne r K ishia L . Po we ll – AMPC E xe c utive Dire c to r, Ca the rine Spillma n – Me mo ria l Pa rk T e c hnic a l Adviso ry Gro up me mb e rs, o the r Civic L e a de rs a nd Offic ia ls  De pa rtme nt o f Wa te rshe d Ma na g e me nt – Pre se nta tio n  Q&A  Clo sing Re ma rks 10/ 28/ 2016 2

AMPT AG-DWM COL L ABORAT I VE T he Atla nta Me mo ria l Pa rk T e c hnic a l Adviso ry Gro up (AMPT AG) a nd the City o f Atla nta ’ s De pa rtme nt o f Wa te rshe d Ma na g e me nt (DWM) a re e ng a g e d in o ng o ing disc ussio ns a nd sc he dule d wo rksho ps a sso c ia te d with the fo llo wing g o a ls: 1. E limina te we t we a the r o ve rflo ws within a nd ne a r Me mo ria l Pa rk a nd within the Pe a c htre e Cre e k Se we r Ba sin; a nd 2. Pro te c t wa te r q ua lity in Pe a c htre e Cre e k 10/ 28/ 2016 3

E PA/ E PD Co nse nt De c re e s  1995 la wsuit re sults in two (2) Co nse nt De c re e s • CSO Co nse nt De c re e (Se p 1998) – Pro je c t c o mple tio n b y 2008 (a c hie ve d) Re d uc e CSOs fro m 100/ yr. a t e a c h o f 6 fa c ilitie s to 4/ yr. o Ac hie ve wa te r q ua lity sta nd a rd s a t po int o f d isc ha rg e o • SSO Co nse nt De c re e (De c 1999) Pro je c t c o mple tio n b y 2027 (pe r a me ndme nt a ppro ve d 2012) Sto p 1000+ a nnua l se we r spills o Ac hie ve a re lia b le se we r syste m o Imple me nt MOMS pla n o 10/ 28/ 2016 4

Cle a n Wa te r Atla nta : Ove rvie w • Re spo nsib le fo r the o ve ra ll ma na g e me nt o f the City’ s two Co nse nt De c re e s – CSO a nd SSO. • Cha rg e is to a ddre ss o pe ra tio n o f the City’ s wa ste wa te r fa c ilitie s a nd a ddre ss CSOs a nd SSOs within the c ity. • Re spo nsib le fo r pla nning , de sig n, a nd c o nstruc tio n o f impro ve me nts to the City's wa ste wa te r c o lle c tio n syste m, a s we ll a s e nviro nme nta l c o mplia nc e a nd re po rting to c o mply with the Co nse nt De c re e s. 10/ 28/ 2016 5

Cle a n Wa te r Atla nta : Go a l • Cle a n Wa te r Atla nta re c o g nize s tha t Atla nta ’ s e c o no mic g ro wth, jo b s, a ffo rda b ility a nd q ua lity o f life a ll de pe nd o n c le a n wa te r. • As suc h, the a im o f Cle a n Wa te r Atla nta is to de ve lo p a nd imple me nt a lo ng -te rm pla n to e nsure hig h q ua lity drinking wa te r fo r Atla nta , a nd c le a n stre a ms a nd wa ste wa te r flo ws fo r Atla nta a nd its do wnstre a m ne ig hb o rs. • T he a mb itio n o f Cle a n Wa te r Atla nta is to c o ntinue e ffo rts to c re a te the c le a ne st urb a n stre a ms a nd rive rs in the c o untry a nd o pe ra te a “Be st I n Cla ss” utility. 10/ 28/ 2016 6

Pe a c htre e Cre e k Se we r Ba sin: Ove rvie w  T he Pe a c htre e Cre e k Ba sin is o ne o f (10) se we r b a sins a nd is lo c a te d in the no rthe rn po rtio n o f the City’ s se we r syste m.  Wa ste wa te r flo ws c o lle c te d within the Pe a c htre e Cre e k Ba sin a re c o nve ye d to the Pe a c htre e Cre e k T runk Syste m a nd o nwa rd to RM Cla yto n WRC fo r tre a tme nt.  Wa ste wa te r g e ne ra te d b y De ka lb Co unty is a lso c o nve ye d thro ug h City trunk a nd re lie f se we rs to the RM Cla yto n WRC a nd is c o ve re d b y the te rms o f a n inte r- jurisdic tio na l (I -J) a g re e me nt 10/ 28/ 2016 7

Pe a c htre e Cre e k Se we r Ba sin: Dra ina g e Are a 96” Atla nta De Ka lb Pipe is 2/ 3 F ull Co unty Dry We a the r F lo w in DeKalb County Pe a c htre e T runk 61.1 Sq. Mile s Atla nta 96” De Ka lb City of Atlanta Co unty Pipe is F ull 33.5 Sq. Mile s 1.5” o f Ra in in Pe a c htre e Ba sin City of De Ka lb County T ota l Atla nta Dra ina g e a re a to 33.5 sq . mi. 61.1 sq . mi. 94.6 sq . mi. Pe a c htre e Cre e k Ba sin Ave ra g e Dry We a the r F lo w 20 MGD 23 MGD 43 MGD 10/ 28/ 2016 8

Pe a c htre e Cre e k Se we r Ba sin – Se we r Ne two rk Me mor ia l Pa r k Se we r s date bac k to e ar ly 1900’s. Post-1970’s 10/ 28/ 2016 9

De c e mb e r 24 - 25, 2015 – Ra in E ve nt • L a rg e re pe a te d ra infa ll e ve nts; 5 inc he s o ve r 2 da ys • F lo o ding fro m Pe a c htre e Cre e k • Co nstra ints a t RM Cla yto n WRC • 10:30a m - the c re e k ro se b e yo nd its b a nks spre a ding into the pla yg ro und a nd into the se we r • ~10:50a m, the ma nho le b e g a n to o ve rflo w whe n the c re e k wa s ~ 1.5 ft o ve r the ma nho le rim Estimated flood stage on Dec 24, 2015 1.5’ Manhole Typical stage during 17.5’ dry weather flows Memorial Park Ground Surface 14’ Peachtree Creek 2-3’ Sewer Pipe 10/ 28/ 2016 10

T HE PAT H F ORWARD T he City De pa rtme nt o f Wa te rshe d Ma na g e me nt is c o mmitte d to a c hie ving the g o a l to e limina te we t we a the r-re la te d se we r o ve rflo ws within Me mo ria l Pa rk a nd the Pe a c htre e Cre e k Ba sin. T he City ha s de ve lo pe d a c o mpre he nsive list o f c o mple te d, pla nne d, a nd po te ntia l pro je c ts, a s we ll a s the ir e xpe c te d b e ne fic ia l impa c ts to c o ntinue e ffo rts to wa rds a c hie ving this g o a l. 10/ 28/ 2016 11

(12) COMPL E T E D PROJE CT S PROJE CT BE NE F ICI AL IMPACT Histo ric a l Re ha b ilita tio n – E a rly – Mid 1990’ s (Va rio us CI PP) E limina te d struc tura l de fe c ts fo und during SSE S a nd re duc e I / I No rth F o rk Pe a c htre e Cre e k Re lie f Se we r I mpro ve me nts – 2001 Pro vide d se we r syste m c a pa c ity pe r de sig n sto rm -- e limina te we t we a the r se we r o ve rflo ws F a irmo nt/ Glidde n Se we r Se pa ra tio n – 2001 Re duc e d CSOs a nd impro ve d wa te r q ua lity Orme Stre e t T runk Re lie f Se we r I mpro ve me nts - 2002 Pro vide d se we r syste m c a pa c ity pe r de sig n sto rm -- e limina te we t we a the r se we r o ve rflo ws So uth F o rk Pe a c htre e Cre e k T runk Re lie f Se we r I mpro ve me nts– 2003 Pro vide d se we r syste m c a pa c ity pe r de sig n sto rm -- e limina te we t we a the r se we r o ve rflo ws I ndia n Cre e k Re lie f Se we r I mpro ve me nts - 2003 Pro vide d se we r syste m c a pa c ity pe r de sig n sto rm -- e limina te we t we a the r se we r o ve rflo ws Se we r Gro up One (SG1) Sma ll Dia me te r Re ha b ilita tio n – 2008 E limina te d struc tura l de fe c ts fo und during SSE S a nd re duc e I / I We st CSO T unne l & WQCF – 2009 Pro vide d c o mb ine d syste m sto ra g e fo r pe a k we t we a the r flo w a wa iting a dditio na l tre a tme nt Old F o urth Wa rd Po nd – 2011 Re duc e d pe a k we t we a the r flo w to c o mb ine d se we r syste m Se we r Gro up T wo (SG2) Sma ll Dia me te r Re ha b ilita tio n – 2011 E limina te d struc tura l de fe c ts fo und during SSE S a nd re duc e I / I Pe a c htre e T runk Re lie f Se we r Re ha b ilita tio n (Bo b b y Jo ne s Go lf Co urse ) CI PP line r insta lle d to a lle via te se we r disc ha rg e to c re e k – 2014 L idde ll Pe a c htre e Cre e k Sto ra g e F a c ility & Pump Sta tio n - 2014 Re duc e d pe a k we t we a the r flo w to Pe a c htre e Cre e k T runk syste m. 10/ 28/ 2016 12

PL ANNE D PROJE CT S: Unde rwa y 1. RM Cla yto n WRC He a dwo rks: Sc ope : • Co nstruc t ne w pla nt he a dwo rks Be ne fic ia l Impa c t: • I mpro ve flo w hydra ulic s a nd c a pa c ity e nte ring the fa c ility • I mpro ve g rit re mo va l a nd re duc e the da ma g ing e ffe c ts o f g rit o n sub se q ue nt unit pro c e sse s • I nsta lla tio n o f ne w influe nt flo w mo nito ring e q uipme nt to a c c ura te ly mo nito r flo ws Sc he dule : • Co nstruc tio n: Sta rt – Qtr. 1 2014; Co mple te – Qtr. 2 2018 10/ 28/ 2016 13

PL ANNE D PROJE CT S: Unde rwa y 2. Pe a c htre e Cre e k T runk Sta b iliza tio n: Sc ope : • Cle a n: 700 L F o f 96 “ pipe , 1,300 L F o f 90” pipe , a nd 1,800 L F o f 66” pipe . • Insta lla tio n o f a ppro x. 11,000 L F o f g ro ute d PVC pro file line r syste m • Cle a n Wo o d wa rd Wa y Sipho n tha t is lo c a te d within the vic inity o f Bo b b y Jo ne s Go lf Co urse . RM Cla yton WRC Be ne fic ial Impac t: Me moria l Pa rk • Re d uc e I/ I fro m e nte ring se we r a nd ro b b ing ne e d e d c a pa c ity • Sa fe g ua rd a g a inst future b re a c he s a nd e nsure s pub lic he a lth a nd sa fe ty • e nsure s lo ng -te rm struc tura l inte g rity o f 90” d ia me te r trunk se we r fo r 50+ ye a rs Sc he dule : • Pro c ure Co nstruc tio n: Qtr. 4 2016 • Awa rd : Qtr. 2 2017 • Co nstruc tio n: Sta rt - Qtr. 2 2017; Co mple te – Qtr. 4 2018 10/ 28/ 2016 14