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HomeMy WebLinkAboutZONE CHANGE AND GENERAL PLAN r TOWN OF SOUTH WINDSOR PLANNING AND ZONING COMMISSION PLANNING AND ZONING COMMISSION ACTION THIS APPLICATION SHALL BE ACCEPTED BY APPLICATION # THE PLANNING AND ZONING COMMI SSION AT RECEIVED DATE: THE REGULARLY SCHEDULED MEETING ON THE APPROVAL DATE: FOURTH TUESDAY OF THE MONTH. IT SHALL REJECTED DATE: BE SUBMITTED TO THE PLANNING AND RECEIPT # ZONING COMMISSION OFFICE ONE (1) WEEK PRIOR TO THE FOURTH TUESDAY. APPLICANT:_jyAN MAg; JACpUES ADDRESS: 626 1F11 i nl2fM Rriac3 s -gni*h Wi nrlsnr, mnecti cut TELEPHONE # 52B-6054 OWNER OF RECORD ON S.W. LAND RECORDS The Hartman Tobacco Co. ADDRESS: C/O Attorney Harry Nair 111 Pearl St. Hartford, Connecticut COMPLETE DESCRIPTION OF LOCATION OF PROPERTY 25 acres, more or less, bounded by Pleasant Valley Road, Wheeler Road, and Smith Street Z ONE RR NAME, ADDRESS & TELEPHONE # OF PERSON TO WHOM CORRESPONDENCE AND INQUIRIES SHOULD BE DIRECTED: Attorney Raymond G. 1eFo11, 2307 Silas Deane Hiqhway, l>cky Hill, ODnnecticut 0( TELEPHONE # 563-2355 THIS APPLICATION IS FOR: (CHECK ONE OF THE FOLLOWING) _X 1. Zone Change to Mp A Zone (public hearing) 2. Filing for Subdivision 3. Filing for Open Space Subdivision (public hearing) 4. Filing for Resubdivision (public hearing) 5. Special Exception to Article of the Zoning Regulations (public hearing 6. Site Development Plan 7. Removal of Sand, Gravel, Clay or Quarry Stone & Ore (public hearing) 8. Other (explain in detail) C44m,� f Q,�p THIS APPLICATION MUST BE SIGNED BY THE APPLICANT AND THE OWNER OF THE PROPERTY AND SUBMITTED ALONG WITH THREE SETS OF PLANS BEFORE IT WILL BE ACCEPTED BY THE PLANNING AND ZONING EAC=ZaMS SION JEAN JEAN NJAOQUES CANf R no 3 . LeFoll, His Attorney LeFoll, His Attdney The Zbbacco Co. arry Nair4 Its Attorne (Mover) -' TABLE OF CONTENTS 1 . SUMMARY 1 2. STUDY PURPOSE 3 3. MONITORING PROGRAM 5 4. SURFACE WATER HYDROLOGY 8 5. GROUNDWATER HYDROLOGY 14 b. COMPUTER SIMULATION 20 7. CONCLUSION 22 8. REFERENCES 24 1 . SUMMARY 1 ) A ground and surface water monitoring program was undertaken to assess the hydrologic setting of the proposed Pleasant Hills Condominium construction site . 2) Seven (7) groundwater monitoring wells were installed on the Pleasant Hills site and water table measurements _ were made from January 265 1984 to March 5, 1984. Inlet and outlet flow volumes to the Cinnamon Springs Pond were also measured during this period. 3) Precipitation falling on Pleasant Hills contributes water primarily to the Plum Gully Brook watershed with a small portion going to the Whaples Brook watershed. 4) Precipitation events are the primary control over fluctuations in the water table . 5) Inlet flow volumes into Cinnamon Springs Pond rang d from 0 to 44,000 gallons per day (gpd) during the study period. Discharge flow volumes from the Pond rang d from (9,500 gpd to 77,000 gpd. 6) Cinnamon Springs Pond reached a seasonal high pool _ elevation during the late part of February at which time the discharge volume peaked at 77,000 gpd. _ 7) Groundwater flowing across Pleasant Hills f 1 ows from a southeasterly to northwesterly direction at the rate of 0 .27 feet/day. 8) The detention basin located in the northwesterly corner of the Pleasant Hills property has a bottom elevation of 92.0 feet above mean sea level (MSL) , and, is currently serving as a point of groundwater discharge . 9) Prior to construction activities in the Cinnamon Springs _ area, it appears from mapped soil units, that groundwater on this property flowed in a northwesterly direction . Since construction , surface and groundwater flowage appear to have been altered to a northeastly -' direction . 10) Footing drains should be considered for use around buildings to be located in the northwesterly section of the Pleasant Hills site . These drains, in turn , should be discharged into the detention basin in order to reinstitute flow back into the watershed. 11 ) The interrelationship between groundwater beneath th Pleasant Hills sit and Cinnamon Springs Pond is on of a r g i oval nature . From a site-specific standpoint , 1 f l owag of groundwater on the Pleasant Hills site is • independent of groundwater flowage on the Cinnamon Springs site . Both areas ultimately contribute water to the Plum Gully Brook watershed. 12) Construction activities, as currently planned, on the Pleasant Hills property will not effectively lower the water table contributing to Cinnamon Springs Pond. 2 2. STUDY PURPOSE A study was undertaken to determine the impact , if any, of the proposed building of the Pleasant Hills Condominium complex on an existent pond located in the central area of the Cinnamon Springs Condominium complex . The project site is located on Pleasant Valley Road in South Windsor , Connecticut , and is delineated on the Manchester topographic quadrangle map (FIGURE 1 ) . In assessing the potential impacts, a monitoring program was initiated to obtain site specific ground and surface —' water data, and to document the following: 1 ) Seasonal high groundwater elevations and runoff volumes at the Pleasant Hills site during high water table periods; 2) Precipitation impacts on groundwater elevations at the Pleasant Hills site , and on observed surface water discharge rates from the Cinnamon Springs Pond; 3) Components affect.i ng surface and groundwater flow entering the pond, and; 4) Hydrogeologic relationships between the Pleasant Hills site , and Cinnamon Springs Pond. Several groundwater monitoring wells were installed on the Pleasant Hills property, and samples of subsurface sediments were collected from the saturated zone . These samples were analyzed in the laboratory for saturated hydraulic conductivity, matrix- porosity, and particl siz 3 1 .:,Too \• ` , • ---� • / • 77 • •• _• • Ole Be 1 ` �r1p 00 • '' SO 46 es ob •r f/ �I 1.0 r MEET TE 9 } "�� ••• . i do •+ , 1 1 SITE /I- �-� LOCATION •_��, SCALE low, gT IN = 2000�' AP— FIGURE I distribution . These data were subsequently used in th de t rm i nat i on of groundwat r f 1 ow parame t rs. Three surface water locations were monitored. This information was used to evaluate stormwater runoff , and th components of ground and surface water entering the pond at Cinnamon Springs. Information from published 1•iterature , maps, reports, and other data bases has been researched during th formulation of this report . All information gathered has been combined with field data to make the assessments presented in this report . Data obtained during the study was used • as input to a computer simulation model . The simulation was used to v rify the nature of the local groundwater regime . 4 3. MONITORING PROGRAM During the course of this study, a program of - ground and surface water monitoring was undertaken on the propos d Pleasant Hills and existent Cinnamon Springs condominium sites. Water table elevation measurements and other observations were made on a routine basis from January 269 to March 5, 1984. Seven (7) groundwater monitoring wells were installed on the Pleasant Hills site (FIGURE 2) . Since the wells wer installed during January, a power auger was used to penetrat b low the frost line ( i .e . , below 9 to 21 inches) . Hand augering equipment was then used to excavate well auger holes to depths ranging from 7 to 24 feet be 1 ow surface grade . The wells were constructed of two inch diameter PVC (polyvinylchloride) casing material , with 24 inch , slotted (0 .015 inch slots) well screens attached by threaded joints to the bottom ends. All casing joints were threaded. The w 11 screens were wrapped with a non-woven polyester mesh fabric to retard the entrance of fines into the wells. Well casings were sealed with a minimum 12 inch diameter bentonit collar , six inches in thickness around the upper portion of the pipe . The bentonite collars serve to protect surface waters from channeling along the outside casing sidewalls. A typical well construction is shown in FIGURE 3. Water elevation data obtained from the monitoring wells are -- 5 Y I 1 I I I I I I I I I I I I I 11 I PROPOSED PLEAc.,*JT HILLS w i ONE)CO 114 i Ut 1 , to C011PLEx 1 PH •12 u 240 STORMWATER • PIPE � 1 y PH •Is BURR MEADOWS , •'' CONDOMINIUM / COMPLEX PH •IS ; / 1Ar PH Of . PH 015 pH •1• SCALE OVERFLOW WEIR t• / 0 200 FEET \ • ` ' PH •14 • o LOCATION POND i•�� �� • CINNAMON SPRINGS M A P • CONDa•1 I N I lS1 ` COMPLEX c 1 r 441l0i4 c� • / PH 01I = SPRINGS '•PROPOse� MONITORING WELL C0tjDl_lr-11141 LIN 1 PLEASANT "ILLS C011PLE� •� • .-.0,cakD011N1 STOiE�IAT ��PLEX PIPE .1 _ 1 FIGURE 2 PLEASANTVALLEY DAD L "'� PVC WELL CAP LAND SOIL SURFACE BACKFILL • -1 IAJ. 4 _ 20 DIAMETER 120 BENTONITE _ SCHEDULE 40 PVC CASING MINIMUM 4' DIAM: • 0 .•t • .• .- • . SAND BACKFI LL= _oN BOREHOLE Z" DIAMETER • 2 FT. LENGTH,SLOTTED r SCHEDULE 40 PVC SCREEN " r sz % WATER t TABLE POLYESTER FABRIC FOR REMOVAL • OF FINES •' PVC CAP GROUNDWATER MONITORING WELL FIGURE 3 pr s nted in TABLE 1 . — Samples of subsurface soil materials were collected from the saturated zone during the well installation process. These samples were analyzed in the laboratory for saturated hydraulic conductivity, matrix porosity, and particle size distribution . Values of hydraulic conductivity indicate how r adily water moves through a material . The matrix porosity m asurement represents the void space present in a sample . Particle size distribution analyses quantify the nature and — d gree of sorting that has taken place during the deposition of unconsolidated sediments. The results of these anal ys s -' are presented in TABLES 2 and 3. Surface water drainage from the Pleasant Hills site is — controlled by the topography, antecedent moisture conditions, v getative cover , and intensity of precipitation events. Flow of surface runoff is primarily toward a 24 inch diamet r reinforced concrete pipe located at the northwesterly corner — of the property (FIGURE 2) . On several dates during th — monitoring period, overland flow was observed entering th pipe from the Pleasant Hills sites and/or from the adjacent — Burr Meadows condominium development area. Water depths in the pipe were measured, and used in calculating discharg rates (TABLE 4) . In order to determine flow volumes in the pipe , the slope was measured at 2 percent , and a Manning roughness coefficient of 0 .0125 was used. 6 TABLE 1 WATER TABLE ELEVATIONS Well Date 1/26/84 1/27/84 1/31/84 PH 010 t 111 .34 t 111 .34 < 111 .34 PH 011 103. 16 103.70 103.55 PH 012 97.77 97.70 97.20 PH 013 101 . 17 101 .07 100 .48 PH 014 < 106.38 < 106.38 4 106.38 PH 015 104.68 104.85 104.72 PH 016 101 .70 101 .40 101 .07 Values represent groundwater elevations above mean sea level . TABLE 1 (Continued) Well _ Date 2/0 3/84 2f 0 7i 84 2/16/84 PH 010 < 111 .34 < 111 .34 < 111 .34 PH 011 103.57 103.47 103.45 PH 012 97.08 97.47 97.70 PH 013 100 .40 100 .86 101 .05 PH 014 < 106.38 < 106.38 < 106.38 PH 015 104.70 104.82 104.80 PH 016 101 .03 101 .52 101 .37 TABLE 1 (Continued) Well Date 2/'27/84 2/29/84 3/0 6/84 PH 010 < 111 .34 < 111 .34 < 111 .34 PH 011 103.69 103.78 103.90 PH 012 97.53 98.25 97.66 PH 013 100 .40 101 .21 100 .67 PH 014 < 106.38 < 106.38 < 106.38 PH 015 105. 10 105.26 105.42 PH 016 101 .59 101 .99 101 .66 TABLE 2 VALUES FOR POROSITY AND HYDRAULIC CONDUCTIVITY Sample Porosity K M (cm/sec) PH 010 39 3.46X10-3 PH 011 44 2.62X10-3 PH 012 43 6.37X10-3 PH 013 38 3.38X10-4 PH 015 45 6.97X10-3 PH 016 46 2. 10X10-3 IV K = saturated hydraulic conduc t i w i t:y . TABLE 3 PARTICLE SIZE DISTRIBUTION ANAL" SES Sieve SAMPLE Size PH 010 PH 011 PH 012 3/8 i n . 100 100 100 1/4 in . 100 100 100 #4 100 100 100 #8 99 100 100 #10 99 100 • 100 #1 b 98 100 100 #20 98 100 99 #30 97 99 97 #40 94 99 91 #50 84 97 74 #80 33 67 20 #20 0 4 15 2 Retained 4 15 2 in pan Values represent percent f i ner (by� ome i yh t)passing individual sieves. TABLE 3 (Continued) Sieve SAMPLE Size PH 013 PH 015 PH 016 3/8 i n . 100 100 100 1/4 i n . 100 100 100 #4 100 100 100 #8 100 100 100 #10 100 100 100 #16 100 100 100 #20 99 100 100 #30 99 100 100 #40 99 99 99 #50 97 99 98 #80 71 63 62 #20 0 20 6 12 Retained 20 6 12 in pan - A 36 inch diameter reinforced concrete stormwater pipe d i scharg s surface runoff wat rs into a trap rock-lined drainage swal e located on the southwesterly portion of th Cinnamon Springs site (FIGURE 2) . The swale in turn , directs the runoff into Cinnamon Springs Pond. Water depths in the pipe were measured, and flow rates calculated (TABLE 4) . The slope of the pipe was 2 percent , and a Manning coefficient of roughness of 0 .0125 was used. Water discharges from Cinnamon Springs Pond via a 32 inch wide rectangular weir structure located at the pond's northerly end (FIGURE 2) . During the monitoring period, water depth measurements were made at the weir crest and overflow discharge rates were calculated using a rectangular w i r formula (TABLE 5) . Precipitation data for the monitoring period was obtained from the National Weather Service station located in Manchester , Connecticut . This information is presented in TABLE 6. 7 TABLE 4 MEASURED DISCHARGE RATES FROM STORMWATER PIPES Date 24 Inch Pipe 36 Inch Pipe Discharge D i scharge (MGD) (MGD) 1/26/24 - 0 .042 1/27/84 0 .360 0 .010 1/31/84 < 0 .006 < 0 .009 2/03/84 15.430 0 .300 2/07/84 < 0 .006 0 .000 2/16/84 0 .014 < 0 .010 2/27/84 0 .006 < 0 .009 2/29/84 < 0 .006 < 0 .009 3/06/84 < 0 .006 < 0 .009 TABLE 5 MEASURED DISCHARiGE RATES FROM OVERFLOW WEIR Date Discharge {MOD} 1/26/84 0 .045 1/27/84 0 .028 1/31/84 0 .007 2/03/94 0 .039 — 2/07/84 0 .023 2/16/84 0 .059 2/r27/84 0 .025 2/29/84 0 .077 3/06/84 0 .077 TABLE 6 P P E C I P I TAT I ON DATA Date Inches 1/18/84 0 .25 1/19/84 0 . 10 _ 1/24/84 0 .45 1/29/84 0 .05 1/30/84 0 .20 1/31/84 0 .25 -' 2/03/84 0 .05 2/04/84 0 .25 2/05/84 0 .30 — 2/11/84 0 . 15 2/12/84 0 .05 2/13/84 0 .25 _ 2/15i84 0 . 75 2/16/84 0 . 10 2/17/84 0 .20 2/18/84 0 . 10 2/19/84 0 .05 2/20/84 0 .05 2/24/84 1 .05 2/28/84 1 . 10 3/0 5/84 0 .55 3/0 6/84 0 . 10 3/09/84 0 .25 Values represent eater equivalent of rain and/or snow. 4. SURFACE WATER HYDROLOGY Precipitation which falls on the Pleasant Hills sit flows in one of three directions. Surface water flowing in the extreme southeasterly quandrant is routed to roadside drainage ditches which ultimately are discharged to Whap 1 es Brook watershed. Surface runoff from the extreme -- northeasterly section of the property f l ows directly toward the roadside drainage ditch along Smith Street . For the remaining portion of the site , runoff travels in a northwesterly direction toward an existent stormwater drain which goes beneath Smith Street and ultimately directs stormwaters toward Plum Gully Brook . The entire site is situated on a glacial terrace deposit consisting of sand and gravel . Under present conditions, the field is covered with corn stubble . -' On the upslope areas of the property toward Wheel r Road, well -drained to excessively drained Merrimac soils predominate . Merrimac soils are often found in a drainage s quence with well drained Agawam soils and moderately well drained Ninigret soils. This drainage sequence exists on the site progressing from the upslope section along Wheeler Road downward toward the northwesterly corner of the property. The t4gawam soil series comprises the bulk of the property. Merrimac soils are coarse textured soils that hav d v lop d ov r coarse sand and gr av 1 d rived f r om 8 crystalline rock and r ddish-brown Triassic rock . The Agawam soil se r i s consists of medium to moderately coarse- sands. They differ from the Merrimac soils in not having a gravelly substratum. Ninigret soils are moderately coarse to medium t xtured and tend to be waterlogged in the lower subsoil during wet seasons. -- soil material found on the site be 1 ow a depth of 5 feet consists of gently dipping laminated lenses of sand, gravel and silt . According to available published geologic references, this deposit can be as much as 70 feet thick . Where the Ninigret soils are found in the northwesterly section of the property, the geologic unit has been mapped as a terrace deposit with a thickness ranging up to 20 feet . Topographic mapping of the site has been performed by the engineering firm of Reino E. Hyyppa & Associates from Glastonbury, Connecticut . In accordance with this mapping, the average slope for the property is 3.5 percent . The total approximate area of the property which contributes surface runoff to the Whaples Brook watershed is 2.2 acres. Th remaining portion , approximately 22.6 acres, contributes surface runoff to the plum Gully Brook watershed. During the course of this study, surface water runoff _ from the site was severe due to frozen ground conditions and the type of vegetative cover . In cultivated, sandy soil -- fi Ids such as this runoff coefficients will vary betw n 9 0 . 18 and 0 .22 for average slopes ranging from 2 to 7 percent . Since runoff app erred to be at a maximum throughout th study -' period., the higher figure of 0 .22 was used for all surface water calculations involving the site . Precipitation for this area of Connecticut averages 42.70 inches annually and th average annual temperature is 50 . 1 F. Typically, the net vaporation rate for the period from the last week in November through the first week in April is negligible . To the west of the project site there is a manmade surface pond in the central area of the Cinnamon Springs Condominium complex . Prior to the construction of th complex , the pond area was mapped as a Walpole soil , which under present day standards, indicates that it was a wetland. Th standing pool elevation of the pond under seasonally wet _ conditions is 101 .0 feet above mean sea level (MSL) and the bottom elevation , as shown on the original engineering plan sheets, is 90 .8 feet above MSL. The pond is fed by stormwater discharge pipes from surrounding parking areas, a stormwater inlet channel on the southerly end, and groundwater seepage . Discharge from the pond is at th northerly end over a weir overflow structure which directs th water through a pipe below surface grade and off the property of the complex . As is the situation in most of southern New England, there is a strong interrelationship between localized precipitation ev n ts, surface wat r runoff and ' th 10 groundwater regime in the Pleasant Hills area. Using the average precipitation and temperature data presented, an estimated total annual precipitation volume available for runoff and infiltration may be calculated by using the Vermue 1 e equation , developed for New England, as follows: F = R -( 11+0 .29R) (0 .035T-0 .65) ._ where , F = annual runoff in inches T = mean annual temperature (F) R = annual precipitation in inches thus, F = 42.70 - ( 11+0 .29*42.70) ( (0 .035*50 .1 )-0 .65) = 16.90 in . This precipitation volume may, in turn , be _ used to calculate the average annual contribution of precipitation to the local groundwater regime . Average Annual Infiltration Precipitation Available for Infiltration - Runoff ( 16.90 in . ) - (0 .22*16.90) 13. 18 inches. Total Annual Precipitation Volume to Groundwater from Pleasant Hills 13. 18 in . x ift/12in x 28.8 Acres x 439560 ft2/Acre x 7.48 gal/ft3 10 ,306,615 gal/yr or 28,237 gallons per day. 11 The final flow volume represents the amount of pr cipitation which is incid nt on P1 asant Hills that actually infiltrates into the groundwater as opposed to running off as stormwater drainage . Surface runoff into the Cinnamon Springs pond through the inlet channel on the southerly end occurred only during heavy rainfall and snowmelt periods. The remainder of the time , water flowing in the channel was derived- from groundwater seeps. Groundwater seeps are defined as locations where water oozes from the ground to form a pool . The groundwater seeps contribute substantially to the inlet flow volume to the pond during high water table periods. When there is no concern with heavy rainfall or snowme l t events, the stream, undoubtedly, becomes intermittent as a result of the water table declining below the stream chann 1 bed. During the time period covered by this report , weir overflow measurements were made at the spillway structure on the same days that water table elevations were monitored in the wells. TABLES 4 and 5 summarize the weir and inlet channel data for the duration of the study. Weir overflow rates varied from 6,500 gallons per day (gpd) after 0 .50 inches of precipitation which fell between January 29 and 31 , 1984, to 77,000 gpd after 1 . 10 inches of rain which fell on February 289 1984. Measurements of flow volume in the inlet -' chann 1 w re 9,500 gpd and <91500 gpd respectively for the 12 same runoff p riods. The difference between the inlet channel and the discharge weir flow rates represents a correlation between a rising water table and a point where the pond provides essentially no more storage volume so there is an increased rate of runoff over the weir . For the last two periods when — the overflow rate was measured, the volume of 77,080 gpd remained constant . This discharge rate occurred during th latter part of February which is considered to be the time of year when the seasonal water table is normally at its highest elevation . The ground is generally saturated from mid-February through mid-March and, therefore , most rainfall will end up as surface runoff . 13 5. GROUNDWATER HYDROLOGY Pleasant Hills is situated in a nearly level , narrow terrace deposit which extends from Glastonbury to the Massachusetts State line . The terrace topography varies from nearly level to gently undu l,,at i ng or sloping. Elevations range from 50 to 120 feet above mean sea level . Geologically, a terrace is an old alluvial plain , ordinarily flat or undulating, bordering a river , a lake , or the sea. In general , the site can be characterized as zone of groundwater recharge with the exception of the northwesterly corner of the property. Under high water table conditions, groundwater does surface in the existent drainage channels in this area thereby indicating a zone of groundwater discharge . It is apparent from surface topographic contours that the general direction of groundwater movement across the site is toward the northwesterly corner of the property. There is undoubtedly a groundwater divide in the southeasterly portion of the site where some of the groundwater actually f 1 ows _ toward the Whaples Brook watershed. Groundwater movement into and through the Cinammon Springs Pond is essentially in a northeasterly direction . It is important to note that the mapped soil unit for the pond is a Walpole soil which consists of moderately coarse to medium textured, poorly drained soils that have developed from sandy or sandy and gravelly terrac d posits. From the 14 original soil maps of th site , this Walpole soil unit tr nds in a northwesterly direction toward the intersection of Clark Street and Smith Street . This soil feature has been modified by construction activities. Modification of groundwater movement within the soil has probably also occurred to some degree due to the excavation process. As previously indicated, an extensive groundwater monitoring program has been undertaken as an integral part of this report . The purpose of the program has been to determine the elevation of the water table , the direction of groundwater movement , the rate of groundwater movement and the possible interrelationship between groundwater beneath Pleasant Hills and Cinammon Springs. Monitoring wells were placed in a sequential triangular format on the site in order to develop an overall planar configuration of the water table . To determine the extent of geologic controls over th movement of groundwater , soil samples obtained from the well bores of the monitoring wells were analyzed in the laboratory. The measured parameters, as shown in TABLES 2 -" and 3, were then used to calculate groundwater flow rates. The rate of f 1 ow of groundwater in the unconsolidated sediments found at the site , is dependent upon the hydraulic conductivity, the water table gradient , and the porosity of the material . Wat r tabl gradients can b calculated by --- 15 using the actual measured elevations from the monitoring wells. By combining this figure with average laboratory r values, groundwater seepage velocity can be computed from the following equation : Q = K/N( (h(a)-h(b)/L) where , K = saturated hydraulic conductivity N = porosity h(a)-h(b)/L = head decline thus, Q ( (4.48 x 10-3 cm/sec)/0 .425) (0 .009) 9.49 x 10-5 cm/sec = 0 .27 ft/day. Throughout the study period, the water table gradient across the site averaged less than 1%. The flatness of th water table is indicative of a coarse textured, unconfined aquifer in unconsolidated material . The water table gradient also becomes flatter progressing toward a point of surface discharge ( i .e . , discharge zone) . The primary control over fluctuation in the water tabl at Pleasant Hills will be precipitation events. This fact was evidenced several times throughout the study period. Using the rainfall event which occurred on February 28, 1984, and amounted to 1 . 10 inches, the total amount of rainfall that was available for infiltration can be calculated as shown in th pr v i ous s c t i on of this r port as follows: 16 Infiltration = Precipitation - Runoff I = ( 1 . 10 in . ) - (0 .22 x 1 . 10 in . ) 0 .86 inches. Corresponding to this amount of infiltration , the rise in the water table from February 27 to February 29, averaged 0 .76 feet near Wells 012 and 013. Rises in the water table w re proportionately less going upslope in a southeasterly direction . This data is similar to previous findings in m dium to coarse sand deposits in Southern New England wher -- a one ( 1 ) inch rainfall results in an approximate rise of one ( 1 ) foot in the water table . The rise usually disappears within 24 hours and flows down gr ad l e n t toward a zone of groundwater discharge . — Maximum, seasonal high water tables were recorded during this study. Starting in the southeasterly corner of th property, no groundwater was encountered to an elevation of 111 .34 at Well 010 and 186.38 at Well 014 feet MSL. N ar the central portion of the property, maximum elevations w re 103.90 for Well 011 and 105.26 .for Well 015 feet abov MSL. In the northwesterly corner of the property, th r highest elevations were 98.25 for Well 012 and 101 .21 for W 11 013 feet above MSL. The low st bas ment elevation in th northw st rly 17 s ctor will be 96.50 f et . To alleviate seasonal water table probl ms with this structure , footing drains will be required. The bottom of the proposed stormwater detention basin is 92.00 feet which is comparable to the existing elevation of the invert of the stormwater culvert under Smith Street . -- Groundwater will discharge into the basin during seasonal high water table periods ( i .e . , mid-February through mid-March) . Inlet channel flows into Cinnamon Springs Pond have ranged between no flow conditions to a peak of 42,000 gallons per day (gpd) . Outlet flows for ' the same time interval have ranged from 6,500 gpd to 77,000 gpd. The last two f 1 ow measurements taken at the overflow weir showed readings of 779000 gpd when the inlet flow was {9,500 gpd. This is th same period that maximum water table elevations were record d on the Pleasant Hills site . The pond appears to have met its maximum storage potential during this time period and all excess water is resultingly discharged over the outlet weir . The interrelationship between the groundwater on th Pleasant Hills site and Cinnamon Springs Pond is one of a regional nature as opposed to site-specific . Both sites ultimately have seasonal surface discharge points with flowage in a northerly direction toward Plum Bully Brook . As -' shown on the original plan sheets for Cinnamon Springs Pond, _ 1$ the pool elevation is 101 .00 feet and the original bottom elevation was 90 .00 feet . These elevations are coincid ntal with groundwater elevations at Pleasant Hills. However , the original gelogic setting, prior to the construction of Cinnamon Springs, allowed groundwater on that site to flow in a northwesterly direction , actually away from the Pleasant Hills site . Therefore , groundwater from the two sites actually merged in a point of surface discharge in the former wetland and surface flowage channels. If groundwater was going to be drained away from Cinnamon Springs Pond, it would currently be happening in association with the, existent surface drainage channel and detention basin separating the -- two properties. r ' — 19 6. COMPUTER SIMULATION Field data obtained from the groundwater monitoring . w lls was used in a numerical model to simulate the contours of the water table on the Pleasant Hills site . All monitored dates exemplified seasonal high water table conditions. The computer model uses irregularly distributed water table elevation data points. Subsequently, the data points are contoured by a subroutine developed by the National C nter for Atmospheric Research . Each monitoring date was simulated by the program. FIGURES 4 and 5 represent the -' water table configurations for January 27, 1984 and February 27, 1984', and are typical of the contours recorded throughout the study period. Results from the simulation for the high water tabs -' period, showed that groundwater flows toward th northwesterly corner of the property. There is a trough in the water table which lays beneath the surface depression where stormwater drains across the site from a southeasterly to northwesterly direction . FIGURES 4 and 5 have been oriented on the computer so that the upper right hand corner of the graph is the southeasterly corner (upgrad i en t) of th property. The closeness of the contour lines in the low r left hand corner of the graphs, represents a point of groundwater discharge which in this instance was the de t n t i on basin . 20 AATmmR TABLE" CONTOURS FOR PLEASANT HILLS- t /27 /84 Iwo - ae. 39. FIGURE 0 AATcR TAKE CONTOUR MAP FOR PLEASANT HIuL.S-2/27/8"i -m Be 47, 8B, 176. FIGURE 9 From th computer simulations, it was inter sting to note that ach mapp d period was nearly identical . The only ` variation appeared to be changes in contour elevation immediately following rainfall events. The consistency of the water table plane , as. mentioned in the previous section of this report , is indicative of an unconfined aquifer in medium to coarse textured sediments. 21 7. CONCLUSION Groundwater primarily flows across the Pleasant Hills site from a southeasterly to a northwesterly direction at an average rate of 8 .27 ft/day. Prior to the construction activities surrounding the Cinnamon Springs Pond area, groundwater in this region flowed in a nothwester 1 y -' direction . Under current conditions, the direction of both surface and groundwater f 1 ow around the Pond has been somewhat altered to flow more northeasterly. Both groundwater regimes ultimately contribute to the Plum Gully Brook watershed. Proposed construction activities to occur at Pleasant Hills will have a limited, site-specific impact on . the water' table in the northwesterly corner of the property. This will be related to the need for footing drains around buildings with bottom elevations below 98.25 feet above MSL. These drains will in turn be outletted to the detention basin in th northwesterly corner so that water will be reinstituted into the watershed. -' Drainage of groundwater away from Cinnamon Springs Pond as a result of construction at Pleasant Hills will not occur . Th installation of previous surface and groundwater control d vices, such as the existent surface drainage channel and d tention basin separating the two properties, would have b n more apt to hav had such an impact on the Pond. 22 Existing and proposed bottom elevations for the detention basin are 92.8 feet above MSL. According to the original ` engineering plans for the Pond at Cinnamon Springs, its bottom elevation is 98 .8 feet above MSL. In addition , subsurface placement of storm and sanitary sewer lin s interceding the two properties would have more of a tendency to intercept groundwater along the pipe bedding materials than would construction activities at higher elevations on the Pleasant Hills site . 23 8. REFERENCES F tter , C.W. 1988 . Applied Hydrogeology. Charles E. Merrill Publishing Co. Columbus, Ohio. 488 pp . Flint , R.F. 1971 . Glacial and Quaternary Geology. John Wiley & Sons, Inc . 892 pp . _ Freeze , R.A. and J.S. Cherry. 1979. Groundwater . Prentice-Hall , Inc . , Englewood Cliffs, N.J. 684 pp . Hardenbergh , W.A. 1953. Water Supply and Purification . -- International Textbook Co. , Scranton , PA. Linsley, R.K. , M.A. Kohler , and J.L.H. Paulus. 1982. Hydrology for Engineers. McGraw-Hill , Inc . 588 pp . Morton , B.L. , J.J. Kolega, and H.D. Luce . 1984. Ground _ water monitoring at a septage lagoon facility in Connecticut . Groundwater Monitoring Review. Spring 1984. U.S. Dept . of Agriculture . 1962. Soil Survey of Hartford County, Connecticut . Soil Conservation Service . Washington , D.C. 126 pp . plus maps. U.S. Geological Survey. 1965. Geologic Map of the Manchester Quadrangle , Connecticut . Map GQ-433. U.S.G.S. Washington , D.C. 24 PUFWELL ASSOCIATES September 1, 1983 Kenneth B. Smith, P.E. Reino E. Hyyppa E Associates 124 Hebron Avenue Glastonbury, CT 06033 Dear Mr. Smith: Enclosed are ten (10) copies of our Traffic Impact Study for the Pleasant Hills Condominiums on Wheeler Road in South Windsor, Connecticut. We trust this satisfactorily responds to your needs and we appreciate the opportunity to be of service to you. r Very truly yours, PURCELL ASSOCIATES ._ Bruce A. Hillson, P.E. Principal Traffic Engineer BAH:bb (83-276) ENGINEERS ARCHITECTS PLANNERS 90 National Drive Glastonbury, CT 06033 • 203-633-8341 TRAFFIC IMPACT STUDY IN CONNECTION WITH THE PROPOSED 130-UNIT PLEASANT HILLS CONDOMINIUMS ON WHEELER ROAD IN SOUTH WINDSOR, CONNECTICUT PREPARED BY: PURCELL ASSOCIATES 90 NATIONAL DRIVE GLASTONBURY, CONNECTICUT SEPTEMBER, 1983 TABLE OF CONTENTS I. INTDODUCTION 1 _ Ii. EXISTING CONDITIONS 1 III. IMPACT OF PROPOSED DEVELOPMENT ON TRAFFIC FLOW 3 IV. CAPACITY ANALYSIS OF THE SURROUNDING ROADWAYS 5 V. FUTURE CONSIDERATIONS 6 VI. SUMMARY AND CONCLUSIONS 7 FIGURES Figure 1 Location Plan following page 1 —. Figure 2 Future Roadway Improvments by Others following page 7 I. INTRODUCTION The purpose of this study is to evaluate the traffic impact of the proposed Pleasant Hills Condominium development located on Wheeler Road in South Windsor, Connecticut. The scope of services covered in this study included making Automatic Traffic Recorder (ATR) counts; making peak period turning movement counts; obtaining information from the Connecticut Department of Transpor- tation (ConnDOT) relating to the reconstruction of 1-86 and associated local roadway improvements; obtaining data relating to the surrounding proper- ties; discussions with representatives of the Town; and reviewing studies prepared for other developments in the area. I1. EXISTING CONDITIONS A 130-unit condominium development is proposed for the approximately 26- acre site located along the westerly side of Wheeler Road between Smith Street on the north and Pleasant Valley Road on the south (See Figure 1). Wheeler Road is a local roadway that is 1400 feet long. It runs in the north- south direction terminating at Smith Street at the northerly end and Pleasant Valley Road at the southerly end. The roadway varies in width from 20 to 30 feet and has one lane in each direction. The southerly end of Wheeler Road was recently reconstructed and is in very good condition; the remainder of the roadway is narrow (20 feet) with unimproved shoulders. The land along both sides of Wheeler Road is presently undeveloped agricultural land. Turning movement counts were made at the intersection of Wheeler Road with 1 �9E pAlvs C' s W � O A SITE LOCATION �<<Fr Jr�rM o" c moq r w vP r R040 F4 ''ti't Sr w'/ ul ,- 4 W c STREET WESt � o �40 cY BURNH►M ST. ExT x SURNM►µ SURNMAM ST• 1 1 I �- 1 1 1 1 ,4� 1 0' of M 1 ; 1 � 1 _ 1 1 ►"o .o= 1 ♦� TURNS KE a 1 e 1 0 .r O 1 V. 1 �O PLEASANT HILLS CONDOMINIUMS I �4 I ' ��M LOCATION PLAN 1 I PUFWL • I \ ASSOCIATES 1 SCALE:l'=1000' FIGURE NO. 1 -- Pleasant Valley Road. These counts show that the two directional volume of traffic on Wheeler Road is 16 vehicles during the morning peak hour and 12 — vehicles during the afternoon peak hour. Smith Street runs in the east-west direction between Buckland Road at the ._ easterly end (approximately 3000 feet east of Wheeler Road) and Clark Street at the westerly end (approximately 2200 feet west of Wheeler Road). The — roadway width varies from 18 feet to 24 feet and has one lane in each direction. The land use along Smith Street includes single family homes, agricultural land and a -unit condominum development (Burr Meadow) adjacent to the Pleasant Hills site. This development is not complete and presently has limited occupancy. Twenty-four hour counts were made s Smith Street. The daily two-directional volume is 265 vehicles with 21 vehicles traveling the roadway during the morning peak hour and 30 vehicles -�� <i�� traveling the roadway during the afternoon peak hour. Pleasant Valley Road runs in the east-west direction beginning at Buckland -' Road in Manchester at the easterly end and extending about 3.75 miles to Main Street in South Windsor at the westerly end. East of Wheeler Road portions of Pleasant Valley Road have been reconstructed as a modern two lane 30 foot roadway. Immediately westerly of Wheeler Road, the roadway tapers to 24 feet and continues with a 22 to 24 foot width to Main Street. -- Land use along Pleasant Valley Road includes single family homes, agricul- tural land, and multi-family homes (Westage Condominiums and Cinnamon Springs). Two partially completed developments on Pleasant Valley Road are located approximately one mile west of Wheeler Road. A 12-lot subdivision (Case Hill) is presently under construction with no completed units, and — Pleasant Valley Homes subdivision has 50 unconstructed or unsold units. _ 2 The daily two-directional count on Pleasant Valley Road is 3500 vehicles.® U1r��i The morning peak hour occurred between 7:00 a.m. and 8:00 a.m. when 134 vehicles traveled eastbound and 183 vehicles traveled westbound (317 total). The afternoon peak hour was observed between 4:45 and 5:45 p.m. when 225 vehicles traveled eastbound and 164 traveled westbound (389 total) . III. IMPACT OF PROPOSED DEVELOPMENT ON TRAFFIC FLOW The Institute of Transportation Engineers' (ITE) Trip Generation Manual and ConnDOT's Trip Generation Study by Israel Zevin were reviewed and found to contain only limited data for condominiums. Since the generation rates for condominiums were somewhat less than the rates for apartments, as well as being based on limited data, it was decided to use the ITE's generation rates for apartments in determining the number of vehicles which would be expected to enter and leave the site during the peak hours of the day. The generation rates used are as follows: Peak morning hour exiting 0.4 vehicles per unit Peak morning hour entering 0. 1 vehicles per unit Peak afternoon hour exiting 0.2 vehicles per unit Peak afternoon hour entering 0.4 vehicles per unit The average daily number of vehicle trips is 6.1 per dwelling unit resulting in an average daily volume of vehicle trips equal to: 130 x 6. 1 = 793 vehicle trips per day. 3 The peak hour volumes of vehicle trips generated by the proposed develop- ment are as follows: AM Peak hour exiting = 130 x .4 = 52 AM Peak hour entering = 130 x . 1 = 13 PM Peak hour exiting = 130 x .2 = 26 PM Peak hour entering = 130 x .4 = 52 The above figures indicate an expected daily impact on the roadway system of 793 vehicle trips with 52 vehicles exiting the site and 13 vehicles entering during the morning peak hour and 26 vehicles exiting and 52 vehicles entering during the afternoon peak hour. The proposed access to the site will be on Wheeler Road approximately 600 feet southerly of Smith Street. The sight distance provided to drivers leaving the site is approximately 600 feet toward the north (to the intersec- tion with Smith Street) and about 500 feet toward the south. Both distances greatly exceed the minimum distance required by ConnDOT design standards. .- I? A conservative estimate of the distribution of the generated traffic would be 100 perce toward the south (toward Pleasant Valley Road) an 50 percent toward the north (toward Smith Street). The expected post-development volumes on Wheeler Road are as follows: 4 Morning Peak Afternoon Peak Wheeler Road South of Access Drive 81 90 Wheeler Road North of Access Drive 49 51 — IV. CAPACITY ANALYSIS OF THE SURROUNDING ROADWAYS The level of service of the intersections at both ends of Wheeler Road were determined using the procedure for Unsignalized "T" Intersections outlined in the Transportation Research Circular 212 - Interim Materials on Highway -- Capacity published by the Transportation Research Board. The intersection at Smith Street is expected to operate at a Level of Service A throughout the day. This Level of Service will be realized even with all of the generated traffic from Burr Meadow passing through the intersection. The intersection of Wheeler Road and Pleasant Valley Road is expected to operate at a Level of Service B during the morning and afternoon peak hours and at a Level of Service A during the remainder of the day. The analysis for this intersec- tion assumed that 50 percent of the Burr Meadow traffic and all of the traffic from the incomplete 62 single family units one mile west of Wheeler Road would travel through this intersection in addition to 100 percent of the site generate traffic. The developer proposes to make roadway improvements along Wheeler Road and Smith Street (to the site property line) to provide appoximately 25 feet of pavement along both roadways. 5 V. FUTURE CONSIDERATIONS r' The Connecticut Department of Transportation is presently reconstructing Interstate 86 through Manchester into Vernon. In conjunction with this work several interchanges are being relocated and local roads reconstructed near the new ramps. Westbound exit and entrance ramps to 1-86 will intersect Pleasant Valley Road immediately east of Windsor Street in Manchester. Approximately 1700 feet of Pleasant Valley Road from Buckland Road west will be reconstructed as a multi-lane roadway with a median and left turn lanes. The design hourly volume on Pleasant Valley Road west of the ramps for the year 2000 is 470 vehicles westbound and 515 vehicles eastbound. These volumes consider the commuter parking lot that is being constructed at -- the intersection of Pleasant Valley Road and Buckland Road. The site is located along the westerly side of Wheeler Road. Along the easterly side of Wheeler Road is the site of the proposed Buckland Commons, a regional shopping mall exceeding one million square feet. The option on -- this property recently changed hands and various types of development are presently being evaluated. According to Town Officials, the developer of the — Buckland Commons Site will be required to construct a connector road beginning at the present intersection of Pleasant Valley Road with Wheeler Road and extending toward the southwest along the town line to the inter- section of Chapel Road at Clark Street. Additionally, the northwest corner of Pleasant Valley Road and Wheeler Road will be relocated toward the north- west with a smooth curve replacing the corner. As a result of these changes, Pleasant Valley Road will become discontinuous at Wheeler Road. It is also expected that Smith Street will be made into a Cul-de-sac west of 6 Buckland Road (See Figure 2). These improvements would separate the residential neighborhoods in South Windsor from the commerical developments at Buckland Commons and in Manchester and would significantly reduce the traffic volumes through the intersections at either end of Wheeler Road. -` VI. SUMMARY AND CONCLUSIONS The proposed 130-unit condominum development is expected to generate a total of 793 vehicle trips per day. During the morning peak hour 52 vehicles will exit the development and 13 will enter; the number of exiting and — entering vehicles during the afternoon peak hour are 26 and 52 respectively. The Level of Service at the intersection of Wheeler Road and Smith Street is expected to continue at Level A throughout the day. The analysis for this intersection considered the existing traffic, all of the generated traffic from the Burr Meadow development and 50 percent of the generated traffic from Pleasant Hills. The intersection of Wheeler Road at Pleasant Valley Road is expected to operate at Level of Service B during the morning and afternoon peak hours and Level of Service A during the remainder of the day. The analysis for this intersection accounted for all of the additional trips expected from completing the 50 remaining units in the Pleasant Valley Homes develop- ment, 12 units in the Case Hill development, half of the expected traffic from Burr Meadows and all of the generated traffic from Pleasant Hills. The sight distance provided to drivers exiting the development greatly exceeds the minimum standards established by ConnDOT. The developer will make improvements along Wheeler Road and along the frontage of the site on Smith Street to provide approximately 25 feet of pavement on both roadways. - 7 °qE 0*1- �G 7 f� i � r ff 9�VE � PLEASANT HILLS SITE o V BUCKLAND COMMONS SITE / _ 040 • PC f4S WEST � W o S-TREES it / / c ®URNMAM SURd AM rc OURMMA►1 sr. 1 1 I I 1 1 N 1 J 1 3 l 1 ,M° a0� 1 1 � �URNnKE r a I 1 p O I o 1 � �o PLEASANT HILLS CONDOMINIUMS I ei�t°��►"° oNRoi� FUTURE ROADWAY ' IMPROVEMENTS BY OTHERS I PuFWL \ ASSOC.TES I SCALEA':1000' FIGURE NO. 2 MEMORANDUM September 6 , 1983 . TO: Mr. Peter DeMallie Director of Planning RE: Preliminary Review "Pleasant Hills Condominiums" The Engineering Department has completed its review of the subject proposal for completeness and feasability. The following comments are offered: 1. The plans and computations as submitted are complete and adequate for acceptance. 2. The applicant should be instructed to submit the proposal to the Water Pollution Control Authority for review of the sanitary sewer layout. Overall, the development concept appears feasible. Robekt Aese,zfault Director of Public Works RA/ds 0,0 s C4 1540 SULLIVAN AVENUE - SOUTH WINDSOR• CONN. 06074 OR,co AREA CODE 203/644-2511 September 14, 1983 Jean Marc Jacques/The Hartman Tobacco Company 626 Ellington Road South Windsor, Connecticut 06074 CERTIFIED MAIL Dear Sirs: At the September 12, 1983 meeting, the South Windsor Inland Wetlands Agency approved with conditions Application NO. 247 for the detention basin for the Pleasant Hills Condominium units located between the boundaries of Pleasant Valley Road, Wheeler Road and Smith Street, South Windsor, Connecticut. - • The permit is based on the plans entitled "Site Plan, Pleasant Hills Condominium,- Prepared for J. & R. Realty of Connecticut, Inc. , South Windsor, Connecticut," dated, January 29, 1983, sheets 4 and 5; drawn by Reino E. Hyyppa and Associates, Civil Engineers and Land Surveyors. The following conditions must be adhered to for this permit to be valid: 1. This proposal is subject to the approval of the Town Engineer. 2. The applicant shall indemnify and hold harmless the Town of South Windsor against any liability which might result from the proposed operation or use. 3. The permit is valid for one year and shall expire Jean Marc Jacques/The Hartman Tobacco Company 626 Ellington Road South Windsor, Connecticut 06074 Letter of Permit - Application NO. 247 September 14, 1983 Page 2. if not initiated and completed within one year from the date of approval. Very truly yours, Constance Erik on, Chairman INLAND WETLANDS AGENCY TOWN OF SOUTH WIND SOR CE:chm cc: Raymond G. Le Foll, Attorney H. L. Nair, Attorney A. Bowen Davies, Deputy Town Engineer Charles Enes, Town Clerk Edward F. Havens, Mayor Richard J. Sartor, Town Manager Marshall Montana, Chairperson, PZC Richard Ryan, Town Council Liaison Thomas D'Auria, Building Official ter De Mallie, Director of Planning Peter Bortolan, Chairman, EDC �ovl 8E� C� � n 0-le s ?d&U&Ot C � 1540 SULLIVAN AVENUE - SOUTH WINDSOR, CONN. 06074 OR- 0 AREA CODE 203/644-2511 October 10, 1983 Attorney Raymond G. Le Foll 2307 Silas Deane Highway Rocky Hill , Connecticut Re: Pleasant Hills Condominiums Dear Attorney Le Foll : At a regular meeting of the Water Pollution Control Authority held on October 4, 1983, the Authority voted to approve the proposed sewer line for Pleasant Hills Condominiums - J. R. Realty of Connecticut - map dated 6/29/83 - Map #1-83-1A - 17 sheets. Enclosed please find a copy of Robert Arsenault' s memorandum dated October 4, 1983, titled: Re: HYDRAULIC CAPACITY OF PROPOSED SANITARY SEWER PROPOSED TO BE INSTALLED IN CONJUNCTION WITH "PLEASANT HILLS CONDOMINIUMS." This is for your records. • Very truly yours, Ralph J. Alexander, Chairman TOWN OF SOUTH WINDSOR Water Pollution Control Authority RJA:pm Encl . CC: Mrs. Marshall Montana, Chairperson, Planning & Zoning Mr. Peter DeMallie, Director of Planning Mr. Thomas P. D'Auri a, Building Inspector Mr. Robert Arsenault, Acting Town Engineer ��owN aE4` -2, 07e So-am ?At� O � G u 4 �a SOUTH WINDSOR COMMUNITY CENTER - 91 AYERS ROAD,SOUTH WINDSOR, CONN. 06074 Solt-C a� RECREATION DEPT. 203-644-2434 HUMAN RESOURCES 203-644-2571 October 13, 1983 TO: Marshall Montana, Chairwoman Planning & Zoning Commission FROM: James Snow, Director Recreation Department SUBJECT: PLEASANT HILLS CONDOMINIUM I have reviewed the site plan of the proposed Pleasant Hill Condo- minium project. The recreational land use as proposed is well planned. The location within the parcel is good. I do suggest that the proposed lot be completely fenced at a minimum height of four (4) feet. If possible, the proposed tennis courts should be laid out so that the direction of play would be directly north/south as much as is feasible. n ff r� I -James Snow, Recreation Director JS/SB cc: R. G. LeFoll , Attorney Peter DeMallie, Planning Director `'10� REaIOry crcog CAPITOL REGION COUNCIL OF GOVERNMENTS z 0 214 MAIN STREET — HARTFORD, CONN. 06106 Co Tel. 203 522-2217 o� ERMINENTS DANA S HANSON EXECUTIVE DIRECTOR TOWN PLANNING AND ZONING COMMISSION REPORT ON ZONING REFERRAL # 84/27 TOWN OF SOUTH WINDSOR OCTOBER 16, 1983 Commissioners: Receipt is acknowledged of the above-numbered referral . Notice of this proposal waswas transmitted to the Planning Division of the Capitol Region Council of Governments under the provisions of Section 8-3(b) of the Connecticut General Statutes, as amended. The referral involves: amendment to zoni map to change zone RR to MFA to allow for construction of condos. Property abuts town of Manchester. COMMENTS: The staff of the Regional Planning Commission of thN Capitol Region Council of Governments has reviewed this referral . The proposed density of approximately 5 units per acre is within the density recommendations for areas designated as suburban on the Regional Plan of Development. However, the site i's- shown as an envirommental and open space preservation area on the regional plan as a result of its designation as prime agricultural land. Questions concerning this referral should be directed to Mary Barnes.. In accordance with our procedures for reporting on routine referrals, no further action will be taken unless specifically requested by local offi:ci.als or Regional Planning Commission representatives before 10/17. The public hearing date is scheduled for 10/18. DISTRIBUTION Respectfully submitted, TPZC• S.W. Harb.ara Surwi lo, Chairman Planner: Htfd. , Windsor, E.W. , Frank Dzurenda Vice-Chairman Ell . , Vernon, Manchester, E.H. ?lane A. Beaulieu learinghouse Representative A VOLUNTARY COUNCIL OF GOVERNMENTS FORMED TO INITIATE AND IMPLEMENT REGIONAL PROGRAMS OF BENEFIT TO THE TOWNS AND THE REGION. �01111 aE4 y Tlo 0-1 C�.o a C V 1540 SULLIVAN AVENUE • SOUTH WINDSOR. CONN. 06074 R.CO AREA CODE 203/644-2511 October 24, 1983 Mr. James Holtrop 178 Quarry Brook Drive South Windsor, Connecticut Dear Jim: Re: Information Reauest As requested, the South Windsor Planning Department has calculated the area of multi-family developments within the Quarry Brook Drive Census Tract (No. 4875) . The area of the tract currently in multi-family use is 110 acres, or 3.1% of the total tract area. The area of the tract currently in the multi-family zone is 173 acres, or 4. 9% of the total tract area. I trust this satisfactorily answers your question, raised at the October 18 public hearing. If I may be of further assistance, please don't hesitate to call. Sincerely, Peter R. DeMallie Director of Planning PRD/ml cc: Marshall Montana, PZC Chairperson Planning & Zoning Commission -9- 11/29/83 considered. Mr. DeMallie explained that the interchange will be east of the temporary road, just east of the J. C. Penney entrance. The total traffic on Smith Street before Burr Meadows was constructed was 100 vehicles per day. Mrs. Montana noted that if 130 units are added, plus if Buckland Commons Mall comes, traffic must be considered. There was a lengthy discussion about traffic in this area. Mrs. Montana said she has a number of concerns about traffic, but knows that the possibility of single family houses is somewhat remote. Mr. Mainelli said he also has concerns but when you look at the alternatives he can' t see anything else happening since condos appear to be acceptable. Mr. Conde said he also cannot sed single family homes on this site and there' s nothing else you could put on it. Mr. Gilligan noted that the intersection of the highway will be there and there' s bound to be development in this area. Mr. Conde noted that Manchester will highly develop the adjacent area, and he has no problem with multi-family in the area since there is ready access to the highway. Mrs. Sorosiak said there are other Towns that have malls with single family dwellings around them. Mr. Gilligan said he knows people in the area would prefer it not be developed for multi-family use , but he is convinced that it is not a bad place lax mu3ti-family. 2ar_ Mal-ell; made z m ti-cm to .approve the application of Jean Marc Jacques for a zone change from RR to MF A far approximately 24.44 acres located on *the nth side of Pleasant Valley Road, west side -of Wheeler Road and south side of Smith Street, as shown on a plan prepared by Reino E. Hyyppa & Associates, dated 5/23/83, Map No. 1-8 3-1. Within 90 days (by February 27, 1984) you must submit a zone change map (1" = 40 ' ) , with an A-2 certification, showing the distance and bearings of all boundary lines and acreage of the land where the zone change was granted. The map shall be drawn in accordance with the rules and regulations of the State Board of Registration for Professional Engineers and Land Surveyors , and shall be stamped and signed by a Registered Land Surveyor and submitted on black and white mylars. After it has been stamped ; and signed by the Commission the mylar must be filed in the Town Clerk' s Office. The effective date of this zone change is the date the mylar is filed in the Town Clerk ' s Office. Mr. Mosher seconded the motion. Commissioners Montana, Mosher, Smith, Conde and Gilligan voted in favor and Commissioner Sorosiak was opposed. The motion was duly carried and so ordered. Planning & Zoning Commission -10- 11/29/83 After a review of the General Plan of Development, -Mrs. Sorosiak moved that the General Plan of Development as shown on plans prepared by Reino E. Hyyppa & Associates, dated 6/29/83, consisting of 17 sheets, Map No. 1-83-1, be approved, subject to the following modifications: 1. Parking areas shall be revised to adhere to the Regulations. 2. Play areas for children shall be provided, and shall not be located near the main road. 3. Density shall be reduced in the "villages" , particularly in in the Areas designated I and III on the key map. _ c. Consideration shall be given to the architectural style and colors . 5 . The modified General Plan of Development must be submitted to this Commission for approval. mr. Maine > ; .sQoonded the motion and it was unanimously voted in favor and so sordered. There being no further business, Mrs. Montana moved the meeting be adjourned at 12:i5 A. M. Mrs. Sorosiak seconded the nation and it was voted in favor unanimously and so ordered. Respectfully submitted, f f 1 Virginia S. Graney, Recording ecretary APPROVED: c0w" aE+ sl 0 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CONN. 06074 AREA CODE 203/644-2511 OR•CO� • December 2, 1983 Raymond G. LeFoll, Esq. r 2307 Silas Deane Highway , Rocky Hill, Ct. 06067 Dear Ray: Re: App. 946 - Jean Marc Jacque Zone Change and General Plan of Development Please be advised that the Planning and Zoning Commission voted on November 29, 1983, to approve the application of Jean Marc Jacques for a zone change from RR to MF-A for approximately 25. 44 acres located on the north side of Pleasant Valley Road, west side of Wheeler Road and south side of Smith Street, as shown on a plan prepared by Reino E. Hyyppa & Associates, dated 5/23/83, Map No. 1-83-1. Within 90 days (by February 27, 1984) you must submit a zone change map (1" = 40 ' ) , with an A-2 certification, showing the distance and bearings of all boundary lines and acreage of the land where the zone change was granted. The map shall be drawn j in accordance with the rules and regulations of the State Board of Registration for Professional Engineers and Land Surveyors, and shall be stamped and signed by a Registered Land Surveyor and submitted on black and white mylars. After it has been stamped and signed by the Commission the mylar must be filed in the Town Clerk' s Office. The effective date of this zone change is the date the mylar is filed in the Town Clerk ' s Office. The Commission also voted to approve the General Plan of Development as shown on plans prepared by Reino E. Hyyppa & Associates, dated 6-29-83, consisting of 17 sheets, Map No. 1-83-1, subject to the following modifications: 1. Parking areas shall be revised to adhere to the Regulations. 2. Play areas for children shall be provided, and shall not be located near the main road. 3 . Density shall be reduced in the "villages" , particularly in in the Areas designated I and III on the key map. Planning & Zoning Commission -2- 12/2/83 4. Consideration shall be given to the architectural style and colors . 5 . The modified General Plan of Development must be submitted to this Commission for approval. Yours very truly, PLANNING AND ZONING COMMISSION vg By: Bert Gilligan, Ch° irmah CC: R. Arsenault, Public Works Director P. DeMallie, Planning Director/ T. D'Auria, Building Official Inland Wetlands Agency Reino Hyyppa & Associates pow" sf� y T_0 O-P ?d&,� o _ � 1 0 �v 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CONN. 06074 soR•co AREA CODE 203/644-2511 February 1, 1984 Raymond G. LeFoll, Esq. 2307 Silas Deane Highway Rocky Hill, Ct. 06067 Dear Ray: Re: App. 946 - Jean Marc Jacques The Planning and Zoning Commission voted last night to approve the General Plan of Development for Pleasant Hill Condominiums, as shown on the plans prepared by Reino E. Hyyppa & Associates, dated 6/29/83, revised 1/17/84 . Please submit mylars for Sheets #1, #2 and #3, with the original approval letter dated December 2, 1983, azd this letter, reproduced thereon to be stamped, - signed and filed in the Town Clerk' s Office. The mylars must be filed no later than February 20, 1984 . The use of berms and landscaping should be considered, especially in the areas adjacent to Burr Meadow Condomoniums and along Wheeler Road, when the application for Special Exception/Site Plan approval is submitted. The issue of density still remains an issue to be resolved. Yours very truly, PLANNING AND ZONING COMMISSION vg By: Robert F. GiUigan, Ch irma CC: R. Martel, Town Engineer P. DeMallie, Planning Director Reino Hyyppa & Associates t(>Vl N SE -Own- 0-/2 sottm, ?dlizd4-at C + r �v 1540 SULLIVAN AVENUE • SOUTH WINDSOR. CONN. 06074 sae•co r AREA CODE 203/644-2511 February 2, 1984 Raymond G. LeFoll, Esq. 2307 Silas Deane Highway Rocky Hill, Ct. 06067 Dear Ray: Re: App. #946 - Jean Marc Jacques The Planning and Zoning Commission voted last night to approve the General Plan of Development for Pleasant Hill Condominiums, as shown on plans prepared by Reino E. Hyyppa & Associates, dated 6/29/83, revised 1/17/84 . Please submit mylars for Sheets #1, #2 and #3, with the original letter of approval dated December 2, 1983, and this letter, reproduced thereon, to be stamped, signed and filed in the Town Clerk' s Office. The mylars must be filed no later than February 20 , 1984 . The u'se of berms and landscaping should be considered, especially in the areas adjacent to Burr Meadow Condominiums and along Wheeler Road, when the application for Special Exception/Site Plan approval is submitted. Density at several locations will be reviewed and may be revised by the Commission when the final site plan is considered. Fours very truly, PLANNING & ZONING COMMISSION vg -��Wj/J,�,& -4 By Rbbert F. 1lligan, ; Chairman CC : R. Martel, Town Engineer P. DeMallie, Planning Director ^� Reino Hyyppa & Associates