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8/11/2020 Sa g a more Ave nue Se we r E xte nsion Public Me e ting City o f Po rtsmo uth, NH August 11, 2020 Suza nne Woodla nd, De puty City Attorne y T e rry De sma ra is, PE , City E ng ine e r Ag e nda Brie f Re vie w of July

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SLIDE 1

8/11/2020 1

City o f Po rtsmo uth, NH

Sa g a more Ave nue Se we r E xte nsion Public Me e ting

Suza nne Woodla nd, De puty City Attorne y T e rry De sma ra is, PE , City E ng ine e r

August 11, 2020

  • Brie f Re vie w of July 28, 2020 Work Se ssion
  • Curre nt Proje c t L

imits a nd Costs

  • Ke y De c ision Ite ms
  • Alte rna tive Proje c t L

imits

  • De c ision Points Summa ry
  • Upda te d Que stionna ir

e Re sults

  • Re sponding T
  • Que stions
  • Alte rna tive / Innova tive Se ptic T

e c hnolog ie s

  • Zoning a nd De ve lopme nt
  • Appr
  • a c h Options - Adva nta g e s a nd Disa dva nta g e s
  • Re c omme nda tions on Othe r Ite ms
  • Ne xt Ste ps

Ag e nda

2 Public Me e ting – Aug ust 11, 2020

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SLIDE 2

8/11/2020 2

Curre nt Proje c t L imits a nd Costs: Proje c t L imits

3

Curre nt Proje c t L imits a nd Costs: Cost Apportionme nt Proposa l

4

Owne r’ s Co st ~$6,600

Stre e t Public Se we r Ma in Se we r L a te ra l Curb Stop Priva te Se we r L a te ra l (PSL )

All Wo rk E xe c ute d By City Co ntra c t

Pump a nd Conne c tion

(Close T

  • House )

City’ s Co st Rig ht o f Wa y

ROW o r E dg e o f Ro a d

Public Me e ting – Aug ust 11, 2020

City’ s Co st Priva te Pro pe rty ~$14,400

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SLIDE 3

8/11/2020 3

Cost E stima te (91 Conne c tions)

Ite m Cost ($)

Sa g a mo re No rth $3,650,000 Sa g a mo re So uth $1,850,000 T

  • ta l City (Se we r Use rs)

$5,500,000 Se rvic e L a te ra ls No rth $420,000 Se rvic e L a te ra ls So uth $180,000 T

  • ta l Owne r

$600,000

(~$6,600 pe r c o nne c tio n)

T

  • ta l Pro je c t Co st

[I f 75% Pa rtic ipa tio n] [I f 50% Pa rtic ipa tio n] [I f 0% Pa rtic ipa tio n] $6,100,000 [$5,620,000] [$5,150,000] [$4,190,000]

Curre nt Proje c t L imits a nd Costs: Curre nt Cost E stima te

5

91 Pumps a nd Co nne c tio ns to Ho use s ~$1,310,000 ~$14,400 e a c h

L a te ra l Co sts I nitia lly Pa id By Se we r E nte rprise F und a nd Re pa id By Pro pe rty Owne r ~$14,400 Pe r Pump (City) ~$6,600 Pe r L a te ra l

(Owne r)

~$21,000 Pe r Pro pe rty T

  • ta l

Public Me e ting – Aug ust 11, 2020

  • Issue : Curre nt E

stima te E xc e e ds $4.4M Proje c t F unding

  • Adde d c osts ba se d on Nov 2019 c ost proposa l
  • Wor

k on pr iva te pr

  • pe r

ty side of pr

  • je c t
  • L

imits e xte nde d to c a pture inte re ste d prope rtie s

  • Pote ntia l Options:

Ke y De c ision Ite ms

6

Ma inta in Curre nt

Co st Pro po sa l Adjust Pro je c t L imits (Re duc ing Pro pe rtie s Se we re d) I nitia te Pro c e ss to Autho rize Additio na l F unding Clo se Ga p Be twe e n $4.4M Autho rize d a nd $6.1M Curre nt E stima te

Cha ng e Curre nt

Co st Pro po sa l Re vise

Public Me e ting – Aug ust 11, 2020

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SLIDE 4

8/11/2020 4

Alte rna tive Proje c t L imits: 57 Conne c tions

7

Pa rtia l No rth F ull So uth

No te : Any Cha ng e s to Pro je c t L imits in Co nse nt De c re e Are Sub je c t to Re g ula to r Appro val

Ite m Cost ($)

Sa g a mo re No rth (Ove r b ridg e ) $2,090,000 Sa g a mo re So uth $1,850,000 T

  • ta l City (Se we r Use rs)

$3,940,000 Se rvic e L a te ra ls No rth $200,000 Se rvic e L a te ra ls So uth $180,000 T

  • ta l Owne r

$380,000

(~$6,600 pe r c o nne c tio n)

T

  • ta l Pro je c t Co st

[I f 75% Pa rtic ipa tio n] [I f 50% Pa rtic ipa tio n] [I f 0% Pa rtic ipa tio n] $4,320,000 [$4,020,000] [$3,720,000] [$3,120,000]

Alte rna tive Proje c t L imits: E stima te d Cost 57 Conne c tions

8

57 Pumps a nd Co nne c tio n to Ho use ~$821,000 ~$14,400 e a c h

L a te ra l Co sts I nitia lly Pa id By Se we r E nte rprise F und a nd Re pa id By Pro pe rty Owne r ~$14,400 Pe r Pump (City) ~$6,600 Pe r L a te ra l

(Owne r)

~$21,000 Pe r Pro pe rty T

  • ta l

Public Me e ting – Aug ust 11, 2020

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SLIDE 5

8/11/2020 5

De c ision Points Summa ry: Cost Ma trix

9

100% Pa rtic ipa tion 75% Pa rtic ipa tion 50% Pa rtic ipa tion 0% Pa rtic ipa tion

Curre nt Pro je c t L imits $6,100,000 $5,620,000 $5,150,000 $4,190,000 Alte rna tive Pro je c t L imits $4,320,000 $4,020,000 $3,720,000 $3,120,000 Curre nt Pro je c t L imits Alte rna tive Pro je c t L imits Within $4.4M F unding Curre nt Co st Pro po sa l

Public Me e ting – Aug ust 11, 2020

De ta ils

  • Distribute d April 2020
  • 88 ma ile d, 59 re turne d
  • 67% Re sponse Ra te
  • Que stions Answe re d Ba se d On

Nove mbe r 2019 Cost Proposa l

Que stions

1. Will You T ie - in a t T ime of Construc tion 2. How Old is E xisting Se ptic Syste m 3. Condition of E xisting Se ptic Syste m 4. How F re que ntly is Se ptic T a nk Pumpe d 5. Whe n is Re pla c e me nt Antic ipa te d 6. Doe s Se ptic Syste m Ha ve a Pump 7. Doe s Se ptic Syste m Ha ve Ae ra tion 8. Doe s Prope rty Ha ve Ra don Mitig a tion 9. Doe s Pr

  • pe r

ty Ha ve F inishe d Ba se me nt

  • 10. Doe s Prope rty Ha ve Ba se me nt

Plumbing

Upda te d Que stionna ire Re sults

10 Public Me e ting – Aug ust 11, 2020

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SLIDE 6

8/11/2020 6

Public Me e ting – Aug ust 11, 2020

Upda te d Que stionna ire Re sults: T ie - in At T ime of Construc tion

11

Re sponse N S

Ye s (10-7)* 24 (59%) 11 (69%) Ma yb e (6-4)* 4 3 No (3-0)* 13 2 T

  • ta l

Re spo nse s 41 16

N S

*Answe r sc a le fo r q ue stio n wa s fro m 0 to 10

Upda te d Que stionna ire Re sults: T ie - in At T ime of Construc tion By Alte rna tive Proje c t L imits Are a s

12

Re sponse N1 N2 S

Ye s (10-7)* 11 (48 %) 13 (72%) 11 (69%) Ma yb e (6-4)* 4 3 No (3-0)* 8 5 2 T

  • ta l

Re spo nse s

23 18 16

N1 N2 S

No te : Any Cha ng e s to Pro je c t L imits in Co nse nt De c re e Are Sub je c t to Re g ula to r Appro val

*Answe r sc a le fo r q ue stio n wa s fro m 0 to 10

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SLIDE 7

8/11/2020 7

Que stion Ma jority Answe r % of T

  • ta l
  • 1. Will Yo u T

ie -in a t T ime o f Co nstruc tio n Ye s (7 to 10) 61

  • 2. Ho w Old is E

xisting Se ptic Syste m Gre a te r T ha n 15 Ye a rs 49

  • 3. Co nditio n o f E

xisting Se ptic Syste m Ve ry Go o d 39

  • 4. Ho w F

re q ue ntly is Se ptic T a nk Pumpe d E ve ry 2 Ye a rs 49

  • 5. Whe n is Re pla c e me nt Antic ipa te d

Ove r 20 Ye a rs 24

  • 6. Do e s Se ptic Syste m Ha ve a Pump

No 61

  • 7. Do e s Se ptic Syste m Ha ve Ae ra tio n

No 69

  • 8. Do e s Pro pe rty Ha ve Ra do n Mitig a tio n

No 73

  • 9. Do e s Pro pe rty Ha ve F

inishe d Ba se me nt No 42

  • 10. Do e s Pro pe rty Ha ve Ba se me nt Plumb ing

No 59

Upda te d Que stionna ire Re sults: Ma jority Answe rs

13 Public Me e ting – Aug ust 11, 2020

  • Not Be ing Conside re d F
  • r T

his Proje c t

  • E

PA And NHDE S Re c omme nd E xte nding Se we r T

  • Are a s Around Wa te r Bodie s
  • Ma ny Alte rna tive / Innova tive Syste ms Still in Piloting

Pha se

  • Sa g a more Cre e k Is An Impa ire d Wa te r Body
  • Ae robic tre a tme nt se ptic syste ms a re ofte n re quire d
  • Syste ms Insta lle d On Priva te Prope rty
  • Not a long te r

m munic ipa l solution

  • Owne r

s ma y not wa nt the ope r a tion a nd ma inte na nc e bur de n

  • Home owne r Could Conside r T

his Option T

  • E

xte nd L ife Of Curre nt Se ptic Syste m

Alte rna tive / Innova tive Se ptic T e c hnolog ie s

14 Public Me e ting – Aug ust 11, 2020

Busse MBR Se wa g e T re a tme nt Syste m

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SLIDE 8

8/11/2020 8

De ve lopme nt Pote ntia l

15

  • Sing le Re side nc e A a nd B

(SRA & SRB): Sing le fa mily

dwe lling s a t low - me dium de nsity

  • Mixe d Re side ntia l Offic e

(MRO) a nd Mixe d Re side ntia l Busine ss (MRB): L

imite d ra ng e of sma ll busine ss a nd re side ntia l. Ma ximum of 8 dwe lling units

  • Wa te rfront Busine ss (WB):

Busine ss de pe nde nt on the oc e a n

  • r rive r

Pro je c t L imits

Adva nta g e s

  • Me e ts Conse nt De c re e L

imits

  • Ma ximize s E

nvironme nta l Be ne fit

  • De ta ils Of Conne c tion Ha ndle d By City

Contra c tor

  • Consiste nt With Nov 2019 Cost Proposa l

Disa dva nta g e s

  • Additiona l F

unding Authoriza tion Re quire d

  • Re quire s Work/ Coordina tion On Priva te

Prope rty

  • Additiona l E

ng ine e r ing a nd De sig n Costs

  • Additiona l Consumption of Sta ff T

ime

Curre nt Proje c t L imits – Curre nt Cost Proposa l Up T

  • $6.10M

16

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SLIDE 9

8/11/2020 9

Adva ntage s

  • E

stima te d Within Cur r e nt Budg e t

  • Se r

vic e s Pr

  • pe r

tie s Close st T

  • Sa g a mor

e Cr e e k

  • De ta ils Of Conne c tion Ha ndle d By City Contra c tor
  • Consiste nt With Nov 2019 Cost Pr
  • posa l

Disa dva nta g e s

  • Re quire s E

PA Approva l Unde r Conse nt De c re e

  • Re duc e s Numbe r Of Se we re d Prope rtie s
  • E

xc lude s Some Inte re ste d Prope rtie s

  • Cha ng e s Piping Config ur

a tion/ De sig n

  • Re quir

e s Wor k/ Coor dina tion On Pr iva te Pr

  • pe r

ty

  • Additiona l E

ng ine e ring a nd De sig n Costs

  • Additiona l Consumption of Sta ff T

ime

Alte rna tive Proje c t L imits – Curre nt Cost Proposa l Up T

  • $4.32M

17

  • Ope ra tion And Ma inte na nc e Of E
  • One Pump Syste m

Re c omme nda tion: Owne r re sponsibility

  • Re pla c e me nt Of E
  • One Pump At E

nd Of L ife

Re c omme nda tion: Owne r re sponsibility

  • Conne c tions At A L

a te r Da te

Re c omme nda tion: Owne r re sponsibility

  • Outsta nding L
  • a n Oblig a tions

Re c omme nda tion: Re pa id a t sa le of prope rty

Re c omme nda tions On Othe r Ite ms

18

T

  • ta ke a diffe re nt a ppro a c h wo uld re q uire a sig nific a nt

c ha ng e to o rdina nc e , b illing , ra te struc ture , a nd b udg e t

Public Me e ting – Aug ust 11, 2020

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SLIDE 10

8/11/2020 10

  • Odorle ss, Colorle ss Ga s tha t Orig ina te s from Roc k
  • Re g ula te d a c tion le ve l is 4.0 pic oc urie pe r lite r (pCi/ L

)

  • No T

e sting Conduc te d a t Prope rtie s with E xisting Ra don Mitig a tion Syste ms

  • T

e sting for Prope rtie s without Ra don Mitig a tion Syste ms

  • Pre - bla st ra don te sting
  • Post- bla st ra don te sting
  • If Post- Bla st T

e sting Shows Inc re a se a nd is Above Ac tion L e ve l City to Insta ll Mitig a tion Syste m

  • Ra don Ga s T

e sting Is Additiona l Proje c t Cost

Re c omme nda tions On Othe r Ite ms: Ra don Ga s T e sting

19 Public Me e ting – Aug ust 11, 2020

  • Vote On De c ision Points
  • No la te r tha n Aug ust 31, 2020 City Counc il Me e ting
  • Se pte mbe r 2020 – Ja nua ry 2021 Pe rmitting And F

ina l De sig n

  • Re quire s a c c e ss on priva te prope rty for we tla nd fla g g ing a nd

surve y

  • F

e brua ry- April 2021 Bidding And Proje c t Awa rd

  • April 2021 – Be g in Construc tion

Ne xt Ste ps

20 Public Me e ting – Aug ust 11, 2020

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SLIDE 11

8/11/2020 11

Que stions

Public Me e ting – Aug ust 11, 2020