Wa ste wa te r Ne two rk Ove rflo w Co nse nt CONSUL T AT ION - - PowerPoint PPT Presentation

Wa ste wa te r Ne two rk Ove rflo w Co nse nt

CONSUL T AT ION ME E T ING 3 AUGUST 2016 BRIDGE T O’ BRIE N AND MIK E BOURK E , CHRIST CHURCH CIT Y COUNCIL

Ove rvie w

u

Wha t is waste wa te r?

u

Curre nt sta te o f the wa ste wa te r ne two rk

u

Why do wa ste wa te r o ve rflo ws o c c ur?

u

Wa ste wa te r o ve rflo w c o nse nt p ro c e ss

u

Ho w fre q ue ntly do o ve rflo ws o c c ur?

u

Wha t is the c urre nt sta te o f the wa te rways?

u

Wha t is Co unc il do ing to impro ve the wa te rwa ys?

u

Wha t is the Co unc il do ing to re duc e o ve rflo ws?

u

Wha t c a n yo u do to impro ve the wa te rwa ys?

u

Wha t do yo u va lue a b o ut the wa te rwa ys whe re o ve rflo ws o c c ur?

Wha t is wa ste wa te r?

u

Waste wate r is wate r fro m inte rnal drains (e .g . to ile t, sho we r, ba th, kitc he n sink, dishwa she r, wa shing ma c hine , la undry tub)

u

Wa ste wa te r is c o nve ye d b y pipe s a nd pump sta tio ns to wa ste wa te r tre a tme nt plants fo r tre atme nt and dispo sal

u

T he ma in purpo se o f a wa ste wa te r syste m is to pro te c t pub lic he a lth

u

In o rde r o f prio rity, a im to ke e p wa ste wa te r:

u

Off pro pe rtie s

u

Off the stre e t

u

Out o f wa te rwa ys

u

Sto rmwa te r c o me s fro m ra infa ll a nd is c o lle c te d in e xte rna l dra ins (e .g . do wnpipe s o ff ro o fs, ke rb a nd c ha nne l o n ro a ds)

Why do we t we a the r o ve rflo ws

• c c ur?

u

Sto rmwate r and g ro undwa te r g e ts into the waste wate r ne two rk thro ug h c ra c ke d pipe s, flo o de d ma nho le s a nd g ully tra ps, a nd c ro ss-c o nne c tio ns (e .g . do wnp ipe a c c ide nta lly c o nne c te d to wa ste wa te r)

u

T his c a n c a use the c a p a c ity o f the wa ste wa te r ne two rk to b e

• ve rwhe lme d in a la rg e sto rm

u

Co nstruc te d o ve rflo w po ints a re sa fe ty va lve s in the wa ste wa te r ne two rk, to pre ve nt o ve rflo ws o n pro pe rtie s a nd o n the stre e t

u

F

• r 3 ye a r Annua l Re c urre nc e Inte rva l sto rm:

u

125 ma nho le s o ve rflo w, to tal o ve rflo w vo lume 42,000 m³

u

22 c o nstruc te d o ve rflo ws o pe ra te , to ta l o ve rflo w vo lume 36,000 m³

Ho w do e s Christc hurc h c o mpa re to

• the r c itie s?

Curre nt sta te o f the wa ste wa te r ne two rk

u

SCIRT wa ste wa te r re pa ir wo rk is la rg e ly c o mple te d b ut ha s o nly re pa ire d da ma g e to c ritic a l a sse ts o r a sse ts in c ritic a l lo c a tio ns, o r da ma g e tha t is e xpe c te d to la st le ss tha n 5 ye a rs

u

Re pla c e me nt o r re pa ir ma jo r da ma g e a c ro ss ha lf o f the ne two rk

u Whe re o b vio us infiltra tio n fo und this will b e re pa ire d b y SCIRT u

Po st SCI RT ne two rk mo de l ha s b e e n b uilt

u Ne e ds c a lib ra ting in we t we a the r to impro ve mo de l a c c ura c y u

Curre ntly a ve ra g e flo ws a re b a c k to “no rma l” - ma yb e ! Ho we ve r the lo ng dry pe rio d ma y b e misle a ding a nd g ro undwa te r le ve ls a re lo w.

Christc hurc h Wa ste wa te r T re a tme nt Pla nt T

• ta l

Da ily F lo w

100,000 120,000 140,000 160,000 180,000 200,000 220,000 240,000 260,000 280,000 300,000

1-Jun 1-Jul 1-Aug 1-Se p 1-Oc t 1-No v 1-De c 1-Ja n 1-F e b 1-Ma r 1-Apr 1-Ma y

R

• lling 91 Da y Ave r

a g e F low (m³/ da y)

2010/ 11 2011/ 12 2012/ 13 2013/ 14 2014/ 15 2015/ 16

Wa ste wa te r o ve rflo w c o nse nt pro c e ss

u

Curre nt we t we a the r o ve rflo w c o nse nt e xpire s in 2025

u

Due to e a rthqua ke da ma g e to wa ste wa te r ne two rk, no n- e nfo rc e me nt a g re e me nt with E nviro nme nt Ca nte rb ury

u

By 1 Ma rc h 2017, ne e d to c o mply with e xisting c o nse nt o r a p ply fo r a ne w c o nse nt

u

Curre ntly running 15 ye a rs histo ric a l ra infa ll in wa ste wa te r ne two rk mo de l to a sse ss c o mplia nc e , b ut will ta ke se ve ra l mo nths

u

Due to e a rthq ua ke da ma g e pro b a b ly wo n’ t c o mply with e xisting c o nse nt, so ne w c o nse nt applic a tio n unde rwa y

u

Ne w c o nse nt will inc lude L ytte lto n Ha rb o ur a nd Aka ro a Ha rb o ur

Wa ste wa te r o ve rflo w c o nse nt pro c e ss

u

Pre vio us c o nse nt b a se d o n re duc ing the fre q ue nc y o f o ve rflo ws to the Avo n Rive r, He a thc o te Rive r a nd Avo n/ He a thc o te E stua ry

u

But no re a l link b e twe e n o ve rflo w fre q ue nc y a nd e ffe c ts o n the e nviro nme nt

u

T a king a n e ffe c ts b a se d a ppro a c h fo r the ne w c o nse nt:

u

Wha t va lue s do the wa te rwa ys ha ve ?

u

Wha t e ffe c ts do wa ste wa te r o ve rflo ws ha ve o n tho se va lue s?

u

Wha t is the b e st pra c tic a b le o ptio n to re duc e tho se e ffe c ts?

10 20 30 40 50 60

2003/ 04 2005/ 06 2007/ 08 2009/ 10 2011/ 12 2013/ 14 2015/ 16

Numb e r o f Ove rflo ws Pe r Ye a r

We t We athe r Ove r flows - Avon He athc ote

No pe r ye a r No o f L

• c atio ns in to tal

Max no o f lo c atio ns pe r e ve nt

Wha t is the Co unc il do ing to re duc e o ve rflo ws?

u

Rub b e r fla ps o n c o nstruc te d o ve rflo ws, to sto p rive r wa te r g e tting into wa ste wa te r ne two rk

u

I n flo o d pro ne a re a s, re pla c ing ve nts o n o ur ma nho le s with so lid lids, to sto p sto rmwa te r ge tting into wa ste wa te r ne two rk

u

In flo o d pro ne a re a s, putting pla stic lids o n ho use ho ld g ully tra ps, to sto p sto rmwa te r ge tting into wa ste wa te r ne two rk

u

Co nduc te d ho use to ho use surve ys in Dia mo nd Ha rb o ur a nd L ytte lto n, to ide ntify whe re sto rmwa te r is ge tting into o ur wa ste wa te r syste m a nd a sking pro pe rty o wne rs to fix issue s

u

Ho use to ho use surve ys pla nne d ne xt in Aka ro a a nd the n Go ve rno rs Ba y

u

Co mple te d Ma jo r Se we r Upg ra de pro je c t, $150 millio n o f ma jo r pro je c ts

• ve r 15 ye a rs

Wha t is the Co unc il do ing to re duc e

• ve rflo ws?

u

In flo o d pro ne a re a s, re pla c ing ve nts o n o ur ma nho le s with so lid lids, to sto p sto rmwate r g e tting into waste wa te r ne two rk

u

In flo o d p ro ne a re a s, putting pla stic lids o n ho use ho ld g ully tra ps, to sto p sto rmwate r g e tting into waste wa te r ne two rk

u

Re duc ing infiltra tio n

u

Suppo rting the SCIRT re pa ir pro gra m

u Re ne wing se rio usly da ma g e d pipe s u Re pa ir ma jo r b re a ks a nd le a ks id e ntifie d thr

• ug h CCT

V

u Pr

e ssur e se we r a nd va c uum a re a s will ha ve muc h le ss infiltra tio n.

Wha t is Co unc il do ing no w to re duc e

• ve rflo ws?

Wha t is Co unc il pla nning to do to re duc e

• ve rflo ws?

u

Alre a d y spe nt so me $50 millio n o n ne w Pump Sta tio n 11, pre ssure ma ins, F e nda lto n Pump Sta tio n a nd duplic a tio n, a nd We ste rn Inte rc e pto r fo r a dditio na l c a pa c ity.

u

Ric c a rto n Ro a d wa ste wa te r trunk ma in upg ra de a nd L

• we r

Ric c a rto n Inte rc e p to r, $13.7 millio n o ve r F Y16-18

u

Co lo mb o Stre e t wa ste wa te r trunk ma in upg ra de a nd Be c ke nha m Stre e t c ro ss c o nne c tio n $2.4 millio n o ve r F Y16-18

u

He a thc o te Rive r we t we a the r wa ste wa te r o ve rflo w re d uc tio n pro je c t, $19.3 millio n o ve r F Y19-25

u

No rthe rn Re lie f pro je c t, $46.7 millio n o ve r F Y19-25

u

T

• ta l of $82 million in L
• ng T

e rm Pla n for re duc ing ove rflows

Wha t is the c urre nt sta te o f the wa te rwa ys?

u

Co unc il c a rrie s o ut e xte nsive mo nito ring o f wa te r q ua lity – o ve r 7,000 sa mple s la st ye a r

u

K e y c o nta mina nts:

u

• 1. Se dime nt – smo the rs ha b ita t a nd fo o d, c a n b e c o nta mina te d. Co me s

fro m runo ff fro m c o nstruc tio n site s, unsta b ilise d surfa c e s, ve hic le s a nd e a rthq ua ke s

u

• 2. Me ta ls (zinc a nd c o ppe r) – to xic to fish a nd o the r c re a ture s. Co me s fro m

b ra ke pa ds, tyre s a nd b uilding pro duc ts (ro o fs, spo uting , do wnpipe s)

u

• 3. Ba c te ria – pub lic he a lth risk. Mo stly c o me s fro m do g s a nd duc ks, a nd
• c c a sio na lly fro m wa ste wa te r o ve rflo ws

u

• 4. Nutrie nts (nitro g e n a nd pho spho rus) – c a n b e to xic (e .g . a mmo nia ) and

e nc o ura g e g ro wth o f we e ds a nd a lg a e . Co me s fro m fe rtilise r, so ils, fa e c e s

• f live sto c k, duc ks a nd do g s.

u

Mo st site s no c ha ng e sinc e 2007, a nd with re mo va l o f la rg e a mo unts o f se dime nt, the wa te rwa ys a re b a c k to no rma l a fte r the e a rthq ua ke s

Wha t is Co unc il d o ing to impro ve wa te rwa ys?

u

Co mmitte d to impro ving the q ua lity o f o ur wate rwa ys, re fle c te d in

• ne o f o ur he a lthy e nviro nme nt c o mmunity o utc o me s:

u Wate r quality and quantity is pro te c te d.

u

Pla n to spe nd o ve r $212 millio n o n p ro je c ts in the ne xt 10 ye a rs to impro ve wa te r q ua lity

Wha t c a n yo u do to impro ve wa te rwa ys?

u

Only flush pe e , po o a nd pa pe r do wn the to ile t. We t wipe s a re no t flusha b le , no ma tte r wha t the y sa y o n the pa c ka g ing . F lushing we t wip e s a nd o the r ite ms c a n c a use b lo c ka g e s in the wa ste wa te r ne two rk, whic h c a n c a use o ve rflo ws.

u

Do no t put fa t do wn the kitc he n sink – put it in the g re e n o rg a nic s b in inste a d . Othe rwise it c o ng e a ls in the pipe s a nd c a use s b lo c ka g e s a nd o ve rflo ws.

u

Do n’ t fe e d the duc ks. T he y a re a ma jo r so urc e o f fa e c a l c o nta mina tio n in o ur wa te rwa ys.

u

Cho o se ro o fing ma te ria ls tha t do n’ t c o nta mina te o ur wa te rwa ys – no n-ste e l p ro d uc ts

• r ne w c o nditio n po wde r c o a te d ste e l a re b e st. I

f yo u ha ve a g a lva nise d ste e l r

• o f,

ma ke sure tha t it’ s pa inte d , a nd that the pa int is in g o o d c o nd itio n. Unpa inte d g a lva nise d ro o fs a re the b ig g e st so urc e o f zinc in o ur wa te rwa ys.

u

Avo id c o p pe r sp o uting , do wnpipe s a nd ro o fs. T he se a re b e c o ming a sig nific a nt so urc e o f c o ppe r in o ur wa te rwa ys.

u

Ne xt time yo ur c a r ne e ds ne w b ra ke pa ds, a sk fo r c o ppe r-fre e b re a kpa ds.

u

I f yo u’ re b uild ing a ne w ho use , ma ke sure tha t the re a re g o o d e ro sio n a nd se d ime nt c o ntro l me a sure s in pla c e to sto p se d ime nt wa shing o ff yo ur pro pe rty into wa te rwa ys.

Six va lue s o f wa te rwa ys

u

Re c re a tio n

u

Cultura l

u

He rita g e

u

E c o lo g y

u

L a ndsc a pe

u

Dra ina g e

u

Wha t do you va lue a bout the wa te rwa ys whe r e ove r flows oc c ur ?

Wha t is Co unc il pla nning to do to re duc e

• ve rflo ws?

u

Optimisa tio n p ro je c t unde rway to ide ntify the suite o f pro je c ts that g ive the b e st b a ng fo r b uc k in re duc ing o ve rflo ws

u

Co mp a ring c o sts fo r c o nta ining wa ste wa te r fo r 6 mo nth, 1 ye a r a nd 3 ye a r Annua l Re c urre nc e I nte rva l sto rms

u

Ca pita l c o sts, o pe ra ting a nd ma inte na nc e c o sts, a nd 50 ye a r life c yc le c o sts

u

Ba se d o n 2068 me dium po pula tio n pro je c tio ns

u

T his wo rk will b e e sse ntia l to supp o rt the o ve rflo w c o nse nt a pplic a tio n

Why do we t we a the r o ve rflo ws

• c c ur?

u

Sto rmwa te r a nd g ro undwa te r g e ts into the wa ste wa te r ne two rk thro ug h c ra c ke d p ipe s, flo o de d ma nho le s a nd g ully tra ps, a nd c ro ss-c o nne c tio ns (e .g . do wnpipe a c c ide nta lly c o nne c te d to wa ste wa te r)

u

T his c a n c a use the c a pa c ity o f the wa ste wa te r ne two rk to b e o ve rwhe lme d in a la rg e sto rm

u

Co nstruc te d o ve rflo w po ints a re sa fe ty va lve s in the wa ste wa te r ne two rk, to pre ve nt o ve rflo ws o n pro pe rtie s a nd o n the stre e t

u

We t we a the r o ve rflo ws - le ss fre q ue nt b ut la rg e r vo lume a nd muc h mo re dilute tha n dry we a the r

• ve rflo ws

u

Ge ne ra lly o c c ur fro m la rg e r pipe s a t de sig ne d o ve rflo w po ints

u

Ca n pre dic t o c c urre nc e thro ug h mo de lling

u

A fo re se e n e ve nt in a la rg e ra in e ve nt - the re fo re re q uire c o nse nt

u

F

• r 3 ye a r Annua l Re c urre nc e Inte rva l sto rm:

u

125 ma nho le s o ve rflo w, to tal vo lume lo st is 42,000 m³

u

22 c o nstruc te d o ve rflo ws o pe ra te , to tal vo lume lo st is 36,000 m³

Why do dry we a the r

• ve rflo ws o c c ur?

u

Dry we a the r o ve rflo ws a re due to :

u

Blo c ka g e due to fa t, o il, g re a se , we t wipe s

u

Blo c ka g e due to tre e ro o ts

u

Blo c ka g e a t b ro ke n pipe s tha t c o lla pse

u

Blo c ka g e c ause d b y dips in g ra de tha t a c c umula te so lids

u

Co ntra c to rs misma na g ing wo rk o n the wa ste wa te r ne two rk

u

Dry we a the r o ve rflo ws:

u

Mo re fre q ue nt tha n we t we a the r o ve rflo ws b ut sma lle r in vo lume (1 to 10m 3)

u

T ypic a lly o c c ur in sma ll pipe s

u

Drive the ma inte na nc e e ffo rt (re pa irs, CCT V, ro o t spra ying , re ne wa ls)

u

Oc c ur a t lo w flo w time s in rive rs – hig he r c o nc e ntra tio n o f c o nta mina nts

Why do we ha ve wa ste wa te r

• ve rflo w po ints?

u

T he ma in purpo se o f a wa ste wa te r ne two rk is to pro te c t pub lic he a lth, b ut it is impo ssib le to de sig n a wa ste wa te r ne two rk tha t c o nta ins a ll o f the wa ste wa te r a ll o f the time

u

Ove rflo w po ints e nsure the le a st pub lic c o nta c t with ra w se wa g e in a ny situa tio n

u

I n o rde r o f prio rity, we a im to ke e p ra w se wa g e :

u

Off priva te p ro pe rty

u

Off p ub lic ro a ds

u

Out o f wa te rwa ys (a nd the re fo re in the pip e s) u

Ove rflo w po ints a re use d in a n e me rg e nc y c a use d b y:

u

Po we r lo ss

u

Pump fa ilure

u

Ina d e q uate c a pa c ity o f wa ste wa te r ne two rk

u

Na tura l d isa ste r

Ove rvie w

u

A fe w myths a nd fa c ts

u

Curre nt wa te r q ua lity c o mpa re d to pre -e a rthq ua ke s

u

Why do we ha ve wa ste wa te r o ve rflo w po ints de sig ne d into ne two rk?

u

Why do o ve rflo ws o c c ur?

u Dry we a the r o ve rflo ws u We t we a the r o ve rflo ws

u

Wha t is the c urre nt sta te o f the wa ste wa te r ne two rk?

u

Wha t is the impa c t o f o ve rflo ws?

u

Wha t is Co unc il do ing to re duc e o ve rflo w fre q ue nc y a nd vo lume ?

u Curre ntly u Me d ium - lo ng te rm

u

Ne w c o nse nt fo r we t we a the r o ve rflo ws

Myths a nd F a c ts

u

Christc hur c h now has a 21st Ce ntury wa ste wate r ne twork following the e arthquake s – that is Myth 1.

u

Our for e fathe r s built the c ity on a swamp – that is F ac t 1

u

Christc hur c h is the only c ity on e a r th tha t ha s we t we a the r ove rflows – tha t is Myth 2.

u

E limina ting AL L

• ve r

flows is simply not a ffor dable (now) – this is F ac t 2.

u

Waste wate r disc har ge s ar e the sole r e ason for de gr ade d wate r quality in our r ive r s – this is Myth 3

u

We a ll wa nt to improve the wate r qua lity in our rive rs – F a c t 3.

Wha t is Co unc il do ing no w to re duc e

• ve rflo w fre q ue nc y a nd vo lume ?

u

Ba c kflo w pre ve ntio n – no n re turn va lve s insta lle d o n a ll o ve rflo ws to sto p rive r wa te r e nte ring the wa ste wa te r ne two rk

u

Se a ling ma nho le ve nts

u

Se a ling priva te pro pe rty lo w g ully tra ps in flo o d pro ne a re a s

u

Mo nito ring a ppro xima te ly 20 o ve rflo w site s

u

I nc re a sing ma inte na nc e e ffo rt, ro o t c utting , po le c a m, b lo ka id .

5 10 15 20 25 30 35 40 45 50

Numb e ro f Ove rflo ws Pe r Ye a r

Numb e r o f Dry We a the r Ove rflo ws Pe r Ye a r

Wha t impac t fro m dry we a the r

• ve rflo ws

u

Cultura lly UNACCE

PT ABL E

u

Sho rt te rm lo c a lise d impa c t o n b a c te rio lo g ic a l q ua lity o f the rive r

u

So me time s so me “unsig htly de b ris” ne e ds to b e re mo ve d

u

Ge ne ra lly sma ll vo lume s so hig h le ve l o f dilutio n

u

No la sting e nviro nme nta l impa c ts

u

Rive rs we ll flushe d in o ne da y

Wha t is the impac t o f we t we a the r

• ve rflo ws?

u

Cultura lly UNACCE

PT ABL E

u

Sma ll lo c a lise d impa c t o n b a c te rio lo g ic a l q ua lity o f the rive r

u

So me time s so me “unsig htly de b ris” ne e ds to b e re mo ve d

u

L a rg e r o ve rflo w vo lume s b ut usua lly hig h rive r flo ws with lo w wa te r q ua lity due to sto rmwa te r

u

Ong o ing mo nito ring has fo und no la sting e c o lo g ic a l impac ts

u

Rive rs we ll flushe d in le ss tha n o ne da y

u

T he ACT

UALe c o lo g ic a l impa c ts a re imme a sura b le (a lre a dy impa c te d)

u

T he ACT

UALb a c te rio lo g ic a l impa c ts a re sma ll a nd sho rt live d

u

T he c ultur

a l a nd public pe rc e ption impac ts a re sig nific a nt.

Optimisa tio n Pro je c t

u

Alte rna tive s to pip e upg ra de s c o nside re d:

u

Sto rag e fa c ilitie s

u

Pump sta tio n upg ra de s

u

Dive rting flo w to c a tc hme nts with c a pa c ity

u

Re duc ing inflo w a nd infiltra tio n

u

Clo ud c o mputing to run hundre ds o f tho usa nds o f c o mb ina tio ns o f upg ra de s to find the mo st c o st e ffe c tive suite o f upg ra de s – sa ving s

• f 20-30% typic a lly a c hie ve d

Wha t is Co unc il pla nning to do to impro ve rive r wa te r q ua lity?

CCC pla n to spend ove r $212M on projec ts ove r the next te n yea rs to improve wa ter qua lity a nd the six value s of Re c r

e ation, Cultur al, He r itage , E c ology, L andsc ape and Dr ainage

Ne w Co nse nt fo r We t We a the r Ove rflo ws

u

Curre ntly ha ve a “Co nse nt Co mplia nc e Stra te g y” a s a g re e d with E c an:

u

E xpire s in Ma rc h 2017

u

Ne w c o nse nt a pplic a tio n re q uire d a t tha t time , if c urre nt c o nse nt c a nno t b e c o mplie d with

u

Curre nt inte rna tio na l tre nd is to se e k a n “e ffe c ts” b a se d c o nse nt, ra the r tha n c o nta ining o ve rflo ws fo r a pa rtic ula r de sig n sto rm

u Elim inatio n o f we t we a the r o ve rflo ws NO Ta ffo rda b le (rig ht no w)

u

Ove rflo ws ne c e ssa ry fo r pub lic he a lth func tio n o f wa ste wa te r ne two rk

u

Impro ve me nts a re po ssib le

Re sults o f Pha se 1 o f Optimisa tio n Pro je c t – Pipe Upg ra de s Only

Ne w Co nse nt fo r We t We a the r Ove rflo ws

u

Dra ft L a nd a nd Wa te r Pla n a ims to c o nta in a ll wa ste wa te r during a 2 ye a rAnnua l Re c urre nc e Inte rva l sto rm

u

Ho we ve r, this do e s no t ta ke a c c o unt o f the e ffe c ts o f wa ste wa te r o ve rflo ws o n the re c e iving e nviro nme nt

u

Ne w c o nse nt a pp lic a tio n will ta ke a n e ffe c ts b a se d a ppro a c h, c o nsiste nt with the Re so urc e Ma na g e me nt Ac t:

u I

de ntify the va lue s o f the re c e iving e nviro nme nt (e .g . a e sthe tic , re c re a tio na l, ma hing a ka i, e c o lo g ic a l)

u Pro po se me a sure s to mitig a te e ffe c ts, de pe nding o n the va lue s ide ntifie d

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Othe r me a sure s ma y inc lude :

u Mo re sto rmwa te r tre a tme nt, a s sto rmwa te r ha s the b ig g e st imp a c t o n the rive rs u F

irst flush o f sto rmwa te r to the wa ste wa te r ne two rk, to ke e p mo st o f the c o nta mina nts o ut o f the rive rs

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re a tme nt o f wa ste wa te r o ve rflo ws (e .g . sc re e ning , hig h ra te tre a tme nt, we tla nds)

u Wa ste wa te r pe a k flo w sto ra g e

Ne xt Ste ps

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F urthe r disc ussio n to c o me with spe c ific inte re sts g ro ups

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Do yo u ha ve a vie w o n ho w the se sho uld b e run?

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We a re g o ing to sug g e st g ro ups a s fo llo ws

u Re c re a tio na l rive r use rs, r

• we r

s, pa ddle rs, wa lke r s e tc

u Sta tuto ry b o d ie s, E

c a n CDHB – MOH, DOC

u Ha rb o ur Co mmunitie s – Aka ro a a nd L

ytte lto n Wha t a re the impo rta nt issue s in yo ur vie w - g ro up d isc ussio n a nd fe e d b a c k 10 minute s.

Any Que stio ns?