Sa g a more Ave nue Se we r E xte nsion Public Me e ting City o - PDF document

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 28, 2020 Work Se ssion o Curre nt Proje c t L imits a nd Costs o Ke y De c ision Ite ms o Alte rna tive Proje c t L imits o De c ision Points Summa ry • Upda te d Que stionna ir e Re sults • Re sponding T o Que stions o Alte rna tive / Innova tive Se ptic T e c hnolog ie s o Zoning a nd De ve lopme nt • Appr oa 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 Public Me e ting – Aug ust 11, 2020 2 1

8/11/2020 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 City’ s Co st Rig ht o f Wa y City’ s Co st Priva te Pro pe rty ~$14,400 Owne r’ s Co st Stre e t ~$6,600 dg e o f Ro a d Public Se we r Ma in Pump a nd ROW o r E Priva te Se we r Se we r L a te ra l Conne c tion L a te ra l (PSL ) Curb Stop (Close T o House ) All Wo rk E xe c ute d By City Co ntra c t Public Me e ting – Aug ust 11, 2020 4 2

8/11/2020 Curre nt Proje c t L imits a nd Costs: Curre nt Cost E stima te Cost E stima te (91 Conne c tions) Ite m Cost ($) Sa g a mo re No rth $3,650,000 91 Pumps a nd Co nne c tio ns to Ho use s Sa g a mo re So uth $1,850,000 ~$1,310,000 ~$14,400 Pe r Pump (City) T o ta l City (Se we r Use rs) $5,500,000 ~$14,400 e a c h ~$6,600 Pe r L a te ra l (Owne r) Se rvic e L a te ra ls No rth $420,000 ~$21,000 Pe r Pro pe rty L a te ra l Co sts I nitia lly Pa id T o ta l Se rvic e L a te ra ls So uth $180,000 By Se we r E nte rprise F und a nd Re pa id By Pro pe rty T o ta l Owne r $600,000 Owne r (~$6,600 pe r c o nne c tio n) T o ta l Pro je c t Co st $6,100,000 [I f 75% Pa rtic ipa tio n] [$5,620,000] [I f 50% Pa rtic ipa tio n] [$5,150,000] [I f 0% Pa rtic ipa tio n] [$4,190,000] Public Me e ting – Aug ust 11, 2020 5 Ke y De c ision Ite ms • Issue : Curre nt E stima te E xc e e ds $4.4M Proje c t F unding o Adde d c osts ba se d on Nov 2019 c ost proposa l • Wor k on pr iva te pr ope r ty side of pr oje c t o L imits e xte nde d to c a pture inte re ste d prope rtie s • Pote ntia l Options: Ma inta in Curre nt Cha ng e Curre nt Co st Pro po sa l Co st Pro po sa l Clo se Ga p Be twe e n $4.4M Autho rize d Re vise a nd $6.1M Curre nt E stima te Adjust Pro je c t L imits I nitia te Pro c e ss to (Re duc ing Pro pe rtie s Autho rize Additio na l Se we re d) F unding Public Me e ting – Aug ust 11, 2020 6 3

8/11/2020 Alte rna tive Proje c t L imits: 57 Conne c tions 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 7 Alte rna tive Proje c t L imits: E stima te d Cost 57 Conne c tions Ite m Cost ($) Sa g a mo re No rth $2,090,000 (Ove r b ridg e ) 57 Pumps a nd Sa g a mo re So uth $1,850,000 Co nne c tio n to Ho use ~$821,000 ~$14,400 Pe r Pump (City) T o ta l City (Se we r Use rs) $3,940,000 ~$14,400 e a c h ~$6,600 Pe r L a te ra l Se rvic e L a te ra ls No rth $200,000 (Owne r) L a te ra l Co sts I nitia lly ~$21,000 Pe r Pro pe rty Se rvic e L a te ra ls So uth $180,000 Pa id By Se we r T o ta l E nte rprise F und a nd T o ta l Owne r $380,000 Re pa id By Pro pe rty (~$6,600 pe r c o nne c tio n) Owne r T o ta l Pro je c t Co st $4,320,000 [I f 75% Pa rtic ipa tio n] [$4,020,000] [I f 50% Pa rtic ipa tio n] [$3,720,000] [I f 0% Pa rtic ipa tio n] [$3,120,000] Public Me e ting – Aug ust 11, 2020 8 4

8/11/2020 De c ision Points Summa ry: Cost Ma trix 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 $6,100,000 $5,620,000 $5,150,000 $4,190,000 L imits Alte rna tive $4,320,000 $4,020,000 $3,720,000 $3,120,000 Pro je c t L imits Within $4.4M F unding Curre nt Co st Pro po sa l Alte rna tive Pro je c t L imits Curre nt Pro je c t L imits Public Me e ting – Aug ust 11, 2020 9 Upda te d Que stionna ire Re sults De ta ils Que stions 1. Will You T ie - in a t T ime of Construc tion • Distribute d April 2020 2. How Old is E xisting Se ptic Syste m • 88 ma ile d, 59 re turne d 3. Condition of E xisting Se ptic Syste m • 67% Re sponse Ra te 4. How F re que ntly is Se ptic T a nk Pumpe d • Que stions Answe re d Ba se d On 5. Whe n is Re pla c e me nt Antic ipa te d Nove mbe r 2019 Cost Proposa l 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 ope r ty Ha ve F inishe d Ba se me nt 10. Doe s Prope rty Ha ve Ba se me nt Plumbing Public Me e ting – Aug ust 11, 2020 10 5

8/11/2020 Upda te d Que stionna ire Re sults: T ie - in At T ime of Construc tion Re sponse N S Ye s 24 11 (10-7)* (59%) (69%) Ma yb e 4 3 N (6-4)* No 13 2 (3-0)* T o ta l 41 16 S Re spo nse s *Answe r sc a le fo r q ue stio n wa s fro m 0 to 10 Public Me e ting – Aug ust 11, 2020 11 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 Re sponse N1 N2 S N 2 Ye s 11 13 11 N 1 (10-7)* (48 %) (72%) (69%) Ma yb e 4 0 3 (6-4)* No 8 5 2 S (3-0)* T o ta l 23 18 16 Re spo nse s No te : Any *Answe r sc a le fo r q ue stio n Cha ng e s to wa s fro m 0 to 10 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 12 Appro val 6

8/11/2020 Upda te d Que stionna ire Re sults: Ma jority Answe rs Que stion Ma jority Answe r % of T ota 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 Public Me e ting – Aug ust 11, 2020 13 Alte rna tive / Innova tive Se ptic T e c hnolog ie s • Not Be ing Conside re d F or T his Proje c t o E PA And NHDE S Re c omme nd E xte nding Se we r T o Are a s Around Wa te r Bodie s o Ma ny Alte rna tive / Innova tive Syste ms Still in Piloting Pha se o 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 o 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 o E xte nd L ife Of Curre nt Se ptic Syste m Busse MBR Se wa g e T re a tme nt Syste m Public Me e ting – Aug ust 11, 2020 14 7

8/11/2020 De ve lopme nt Pote ntia l Pro je c t L imits • 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 or rive r 15 Curre nt Proje c t L imits – Curre nt Cost Proposa l Up T o $6.10M 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 o Additiona l E ng ine e r ing a nd De sig n Costs o Additiona l Consumption of Sta ff T ime 16 8

8/11/2020 Alte rna tive Proje c t L imits – Curre nt Cost Proposa l Up T o $4.32M Adva ntage s • E stima te d Within Cur r e nt Budg e t • Se r vic e s Pr ope r tie s Close st T o 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 oposa 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 ope r ty o Additiona l E ng ine e ring a nd De sig n Costs o Additiona l Consumption of Sta ff T ime 17 Re c omme nda tions On Othe r Ite ms • 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 oa n Oblig a tions Re c omme nda tion: Re pa id a t sa le of prope rty T o 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 18 9