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HomeMy WebLinkAboutSTONEHENGE PUD SIXTH - Filed GC-GENERAL CORRESPONDENCE - 2008-07-31�IIII�IIIP'IIlilil`�Illi � 1 ' rJ COLORADO DEPARTMENT OF HEALTH 4210 EAST 11TH AVENUE August 30, 1977 Paul Lanspery Interim City Manager 300 La Porte Ave. P.O. Box 580 Ft. Collins, CO 80521 RE: MS-1 Fort Collins Dear Mr. Lanspery: DENVER, COIORADO 80220 • PHONE 388-6111 Anthony Robbins, M.D., M.P.A. Executive Director I'm sure you are aware of the recent problem the City of Fort Collins had with contaminated water entering the potable water distribution system. These situations are difficult to prevent due to the nature of the cause, hazard- ous cross -connections. Unfortunately, it seems most cr�— c are discovered in this manner. Although difficult to prevent, in most cases the problem is usually cleared up within a 24 to 48 hour period with effective flushing of the lines and proper disinfection techniques. This brings me to the purpose of this letter. It is very difficult to properly flush and disinfect contaminated water mains where dead ends occur without a fire hydrant, flushing hydrant, or blow -off. Without a flushing device and/or looped distribution lines, contaminated water may remain for long periods of time. All future water mains in the City of Fort Collins should be installed with this potential hazard in mind. The mains should be l000ed where beneficial and economical, and where dead -ends occur, a flushing device provided. All existing dead -ends in the distribution system should be provided with a flushing device. The Town should also institute an active cross -connection control program. If you wish to discuss this letter, please call me at 388-6111, extension 322, or write me in care of the Water Quality Control Division, Sincerely yours, - FOR DIRECTOR, WATER QUALITY CONTROL DIVISION cc: Doug Wigle, Larimer County Thomas M. Tistinic Roger Krempel District Engin(Ihr I IIIIhw") iwl 1 ir'n 3. I had hop d the seven (7) foot sidewalk o`n Horsetooth Road would be installed this week, but weather conditions and anticedent moisture have prohibited that. F & F Concrete Company is standing by to install the walk just as soon as conditions allow. A signed contract for $7,122.50 exists for that walk installation. 4. The four (4) foot walk on Stuart Street at Stonehenge Fourth and Sixth Filings will be installed by the original deadline of December loth if weather allows: At this time the sprinkler heads and sod have been removed and subgrade preparation is scheduled next. F F, F Concrete Company has tentatively scheduled the installation of that walk for late November. A signed contract for $5,940 exists i for that walk installation. S. The request for sidewalk only on the west side of Landings Drive with development of approved utility plans for The Wharf at The Landings, Phases I and II was viewed favorably by your staff. There are no homes fronting on Landings Drive in Filing I and the entire length has been land- scaped. According to a document they referred to, for a P.U.D. sidewalk on one side only is acceptable under that condition. We appreciate that very much. 6. Mr. Stringer was to determine if there are more than the two areas of pavement failure that I referred to in my letter of October 2nd.to Bob Zakely that need repair. I have informed Sterling Paving Company that repairs are necessary. I would like to have that repair completed this year, but fear it may take longer considering the season. 7. Again, I am afraid the short stretch of sidewalk along Breakwater Drive, and in fact completion of Breakwater Drive to Lemay Avenue by Golden Meadows is stymied until condemnation by the City of property for the northerly extension of Lemay Avenue is accomplished. Until then access must be maintained along the dam of Warren Lake. We will be happy to complete our portion of Breakwater Drive improvements (totaling approximately $2,500.00) as soon as possible. I assured your staff that when other items of concern surface now or in the future I will work as best I can to handle them efficiently and toasatisfactory end. The approximate cost of all the improvements listed above is $20_25I000.. I ask that my assurance that these improvements will be"made will -suffice,- Lf that is not acceptable, Osprey Homes, Inc. will escrow the funds during banking hours next week. Sincerely, -;e,pov'� Dennis L. Donovan, P.E; Vice President Land Development PC: jteid Rosenthal Mauri Rupel Dave Stringer Roy Bingman M ITY OF FORT COLLINS ENGINEERING DIVISION December 12, 1979 P.O. BOX Osprey Homes 300 Spinnaker Lane Fort Collins, Colorado TO WHOM IT 11AY CONCERN: FORT COLLINS, COLORADO 80522 Our office has contacted your's on several occasions concerning the raising of manholes and valve boxes in the Stonehenge 6th subdivision. It is a very real health and safety hazard to the general public and I must insist that this work be done immediately. Your failure to comply will result in the City not releasing any certificates of occupancy for the buildings now under construction and refusal of any other building permits that your builders might request. Your cooperation in this matter will be greatly appreciated, Dave Stringer Chief Construction Inspector PH (303) 484-4220 EXT. 728 EXT. 728 December 14, 1979 Mr. Dennis Donovan Osprey Homes 300 Spinnaker Lane Fort Collins, Colorado Dear Dennis: The following correspondence is in regard to the constructed detention pond "C" of the Stonehenge 6th filing P.U.D. The as -built drawings for the aforementioned pond that you supplied to the City through James H. Stewart F, Associates, Inc, shows the pond being constructed approximately 3 feet higher than was originally approved by the City. This is a very drastic deviation from the originally approved pond. Originally this pond was approved in conjunction with the Stonehenge master drainage plan. This master plan showed the contributing area to each pond through the grading plan for the P.U.D. This plan has been disrupted by the construction of the pond that took place. So in order to approve this pond, it shall be required to show a revised master drainage plan with supporting calculations for the affected areas. Again, this master drainage plan should show overall relationship the ponds have with one another and the final grading plan for the con- tributing area to each pond. Also, the flow that is discharged from pond "C" should be intercepted in a catch basin in Stonehenge Drive at the already existing culvert across Stonehenge Drive. If you have any questions on the matter, please feel free to contact me. Sincerely, Bob Smith Storm Drainage Engineer cc: Maurice Rupel CITY OF FORT COLLINS P.O. BOX 580. FORT COLLINS, COLORADO 80522 PH (303) 484-4220 ENGINEERING DIVISION EXT. 728 February 26, 1980 Mr. J. Ed Goodman Cornell Consulting Company P.O. Box 646 Fort Collins, Colorado Dear Ed: From reviewing the revised detention pond on Stonehenge 6th Filing P.U.D.; I have the following comments. - -----= -- _ ._ If I read the report correctly, the catch basin that is proposed at the outlet of Detention Pond "D" will intercept the discharge from Detention Pond "C" and the surface flow from Hunter Court. Also, the culvert under Stonehenge Drive will be responsible for the discharge from Detention Pond "D". Combining the flows mentioned above, the culvert will have to handle over 7.4 cfs. Some alterations should be made to this culvert to adequately handle this combined flow. In addition, Mr. P4arc Engemoen, of our office, has had numerous conversations with Mr. Dennis Donovan and Mr. Bill Blackwell regarding the same matter.. If you have any questions on this matter, please advise. Sincerely, /� Bob Smith Assistant City Engineer - Drainage cc: P7auri Rupel ENGINEERING DIVISION March 2, 1983 Dennis Donovan Land Development Osprey Homes, Inc. 1113 Stoney Hill Drive Ft. Collins, Colorado Re: Stonehenge 6th Dear Dennis: It has recently been brought to my attention that Osprey Homes has failed to honor its obligation to install a sidewalk along Lemay Avenue adjacent to the Osprey properties. I refer to your letter of 'cbruary 12, 1980 in which it is stated, the installation of this sidewalk will occur no later than the 1981 construction season. In addition, the sidewalk alignment and grade would be coordinated through the City Engineer's office. To date neither of the above items has occurred. The City now finds it necessary to require that the sidewalk along Lemay Avenue be installed. We would appreciate your cooperation in this matter and urge you to submit the necessary construction drawings to our office for approval as soon as possible. Thank you in advance for correcting this situation. If you have any questions, don't hesitate to contact me. �erely, David Stringer r i Chief Construction Inspector CITY ATTORNEY'S OFFICE EXT. 700 RECEIVED JUN 2 9 1983 June 29, 1983 PLANNING DEPARTMENT Mr. Reid Rosenthal President Osprey Homes 1113 Stoney Hill Drive Fort Collins, CO 80525 RE: Detention Pond "C", Stonehenge 6th Filing Dear Mr. Rosenthal: Recently, complaints have been made to this office re- garding unfinished work at the above referenced detention pond. In response to these complaints several members of Fort Collins City staff conducted a site inspection of this area on June 23, 1983. As a result of that inspection staff concluded that both landscaping and drainage work were necessary by the de- veloper, Osprey, in order to bring the area up to City standards. With respect to the storm drainage concerns, the following work is necessary: 1. An orifice plate must be installed on the upstream end of the 18" outlet culvert located on the north end of the pond. The correct orifice size is shown on the current Vineyard I utility plans. 2. The existing overflow channel located on the south- east end of the pond must be upgraded to the description stated in the current Vineyard I utility plans. That des- cription states that a 25 foot overflow weir must be installed at the elevation shown on the plans. 3. An "as built" survey must be submitted indicating the existing volume of the pond in order to check it against the required volume as indicated in the drainage report. LM '.d Mr. Reid Rosenthal June 29, 1983 Pond "C" page two With regard to the landscaping concerns, the following observations were made: 1. The north 2/3 of the pond has been seeded and shows a fair level of grass establishment. However, this section has a heavy broadleaf weed growth in the grass. To bring it up to standard, the broadleaves should be sprayed and the area overseeded with grass to provide a solid stand of relatively weed free grass. 2. The south 1/3 of the pond does not appear to have been seeded at all. The ground is covered with weed growth and no grass is established. This section needs to be cultivated, graded and seeded to provide a solid surface of grass. The City is confident that Osprey Homes shall address these matters earnestly and will initiate corrective measures immediately. I shall personally reinspect the area on July 22nd to insure that City standards have been met in all respects. If you should have any questions, please feel free to con- tact me at your convenience. Very truly yours, Ken Frazier Assistant City Attorney KF:se CC: Mauri Rupel, Development Center Director Cathy Chianese, Project Planner Mr. & Mrs. W.H. Brown Board of Directors, Stonehenge Homeowners Assoc. T3DItC Engineering Consultants Drake Terrace Suite 240 343 West Drake Road Fort Collins, CO 80526 303/226-4955 053-008 ` o,.rr July 30, 1984 � City of Fort Collins P.O. Box 580 _s ., / 0•. Fort Collins, CO 80522 ATM: Mr. Mick Mercer.„ RE: Stonehenge Pond C 7 Existing Capacity Dear Mr. Mercer: It is our understanding that your department has some question as to the capacity of Pond C located in the Stonehenge P.U.D. The purpose of this letter report will be to present our findings relative to this capacity. Pend C is located south of Stonehenge Drive and east of Brumal Court in the Stonehenge P.U.D. The pond receives storm water from Stonehenge Sixth Filing, Vineyard Filing I, and Vineyard Filing II, presently under con- struction. These flaws are released from the north end of the pond into the south gutter of Stonehenge Drive. On July 7, 1984 our subcontractor, G & E Survey, d the pond site and area upstream to an elevation of 49640., From this einformation they Produced the attached contour map and table outlining the total and incremental volumes of ,the ponding area. Based on the field survey and drainage report prepared by Cornell Consulting Company in November 1980 for The Vineyard it na T At the existing pond capacity is less than that required by design. Two areas contribute to this lack of adequate capacity. The north east side of the pond by Stonehenge Drive contains approximately 120 linear feet of berm which, elevation wise, lies below an elevation of 4965.4. The lowest point in this section of berm lies at 4964.9; five tenths (0.5r) of a foot below the maximum design water surface. The other area is located by the overflow weir on the east side of the pond. Lowest elevation in this area is 4965.1; three tenths (0.31) of a foot below the maximum design water surface. Maximum capacity of Pond C as it exists and prior to overtopping of the berm is 0.66 acre-feet. Raising the berm at the two locations to 4965.4 will produce a volume of approximately 1.08 acre-feet. This volume coincides with the design volume contained in the Cornell report. V0 City of Fort Collins July 30, 1984 Page 2 It should be noted that if the berm is raised to 4965.4 no free board would exist in certain areas. Should the water surface exceed the 4965.4 eleva- tion overtopping of the berm would occur causing water to flow into the adjacent lots. Sheet 9 of 10 of the Vineyard Filing I construction draw- ings show Fond C and related contours. This sheet shows a 4966 contour around the pond. This serves two apparent purposes. First, it maintains free board above the design water surface. Secondly, it helps define an overflow weir on the southeast boundary of the pond. The intent of this weir is to outlet flows anticipated in the Cornell report but not anticipated in the design accomplished, by others, prior to the Cornell report. Since the top of the berm around the east and southeast boundary of the pond is less than 4966, the area would have to be raised to reflect the intent of Sheet 9 of 10 and the Cornell drainage report. Should you have any questions and/or concerns, please feel free to call. Respectfully. RBD, INC.RE01r o��aP�DF.S��TF9T CITY OF FORT COLLINS STORM WATER UTILITY August 24, 1984 Osprey Homes, Inc. Attn: Greg Scott 155 E. Boardwalk Ft. Collines, CO 80525 Re: Detention Pond "C" Serving The Vineyards I & II and Stonehenge 6th Filing Dear Greg: As we recently discussed, the City will continue to withhold building permits and certificates of occupancy in The Vineyards and Stonehenge 6th PUD's until the following items are completed: 1. The berm along the eastern side of the detention pond must be raised to a minimum elevation of 4966.0 feet, as shown on Sheet 9 of 10 of The Vineyards Filing I construction drawings. 2. An appropriately sized orifice plate must be installed on the upstream end of the 18" outlet culvert, as shown on The Vineyards I utility plans, Sheet 10 of 10. 3. The inlet area from Brumal Court into the pond must be redesigned and rebuilt so that it will accept nuisance flows from the street and move them unimpeded into the pond. Please keep in mind the problems with sedimentation, stagnation and maintenance currently plaguing the nearby residents, and redesign accordingly. 4. Proposed changes to the pond need to be submitted by a registered professional engineer to the City for approval prior to installation. STORM WATER UTILITY 300 LaPorte Ave.. P.O. Box 580 . Fort Collins, Colorado B0522 . (3031 221-6E05 *Ar MA CORNE11 CONSUITINq COMPANY pobox 64b foRTcolliNz,coloRAdo80522 Pkw (303)48226650 MANAGEMENT/EWG NEERINgG February 2, 1978 Mr. Donald Parsons City Engineer 300 W. LaPorte Ave. Fort Collins, CO 80521 Dear Mr. Parsons: We are transmitting herewith one (1) set of original drawings for Stonehenge P.J.D., 6th Filing, for your review and approval. In addition please find: 1. Copy of change order dated November 3, 1977 Stonehenge 4th Filing, regarding water main stub going toward Priam Drive. 2. Soils report (Forthcoming) 3. Detention Calculations Please also note that net driveway lengths are equal to or less than 100 feet in all cases. For example, Driveway "B" end station is 1+25.00 from centerline intersection of Adam Drive. When Adam Drive right-of-way width is subtracted (25 ft.), the net length is 100 feet. It was noted that two curves on Priam Drive are underdesigned for 25 m.p.h. traffic. Approval of the plat for development is considered to be implicit approval of street curvature design. The plat for this development has been approved. In addition, obviously this is a relatively short street hence traffic volumes will be law. It is also noted that the looped water lines, where not adjacent to individual properties may be reduced somwhat in diameter to facilitate deposit prevention. Mr. Tan Hayes, of your staff, has this under advisement. In addition, please be advised that sidewalks on driveways and on one side of cul-de-sacs have been eliminated. If we can be of any further assistance in this matter, please advise. Very truly yours o� a. 4 Harry A Cornell HAC/mjh Osprey Homes, Inc. August 24, 1984 Page Two 5. Finally, an as -built survey will also be required from the engineer when all work is completed verifying that the constructed volume matches the design volume, and the entire pond was constructed as designed. As we discussed, you have agreed to send to me a time table for completing these items so that the City can eventually approve the final construction and release its hold on permits and C.O.'s. If you have any questions, please feel free to contact me. Sincerely, Michael H. Mercer Stormwater Utility Engineering Services cc: Vic Perrella Terry Spencer Jim Lofti Stonehenge Homeowners' Assn. c/o Larry Smith i g • CITY OF FORT COLLINS P.O. BOX 580 FORT COLLINS COLORADO 80522 PH (303) 484-4220 EXT. 305 ENGINEERING SERVICES DEPARTMENT April 3, 1979 Mr. Reid Rosenthal Osprey Homes 300 Spinnaker lane Fort Collins, Colorado Dear Reid: This letter will confirm our discussion in my office yesterday morning. We have issued engineering releases for building permits on the remain- ing condominiums in the third phase of Stonehenge, Sixth Filing, lots 74-77 and 98-102. Before any certificates of occupancy will be released for any of these units, the detention system within this phase must be completed and approved. Also, any requirements in terms of utilities, including any water line loops required by the City, must be completed and approved at that time. The City is presently considering the phases of your development to be those listed by lots in the utility agreement and shown on the drawing we examined in ny office. If you wish to change these phases, please notify us at least a week in advance of requesting additional permits so that we have an opportunity to re-evaluate the utility phasing requirements. Finally, I am sure you are aware that the City has been more than cooperative in the past in terms of working around the various construction problems you have encountered on both the Fourth and Sixth Filings of Stonehenge. However, from this point on, we intend to strictly enforce the conditions of the utility agreement regarding the issuance of additional permits in terms of the completion of utilities, particularly storm drainage. And we expect, as the weather permits, that you will continue to correct the remaining problems in Stonehenge, including the detention system in the Fourth Filing and the sidewalk along Stuart Street. If you have any questions regarding this matter, please feel free to contact ire. Sincerely, Marc Engemen Development Engineer 100% Recycled Bond `%4 ANEERING DIVISION EXT. 728 June 20, 1979 Mr. Reid Rosenthal Osprey Homes 300 Spinnaker Lane Fort Collins, Colorado Dear Reid: During the week of May 21st it was discovered that the newly installed water main on Solstice Drive just north of Welch in Stonehenge 6th was directly beneath the curb and gutter on the west side of the street. In a telephone conversation I had with you later the same week I told you that before any further work could proceed on that street your engineer would have to submit to the City Development Engineer a plan which shows the existing locations of the curbs and gutters, water mains, and sewer mains on Solstice for review and to determine what will be necessary to correct the current problem with the water main. To date we have not received these plans. Please let this letter serve as a reminder of our discussion. Also, it is obvious that without plans and necessary reconstruction, building permits and certificates of occupancy cannot be issued on the portion of the street in question. Sincerely, Robert T. Zak y Chief Construction nspector cc: Don Parsons Mauri Rupel' Dave Stringer Tom Mannschreck :A ENGINEERING DIVISION EXT. 728 June 20, 1979 Mr. Reid Rosenthal Osprey Homes 300 Spinnaker Lane Fort Collins, Colorado Dear Reid: Recently we inspected the trench left by crews from Allen Plumbing & Heating where they had tied sanitary sewer service from the Assembly of God Church into your Stonehenge 6th subdivision sanitary sewer. It became apparent during this inspection that the 8" sewer main which comes off of Solstice Drive north into what was called Aries Court between Manhole Nos. 5G-6 and 5G-7 is directly beneath the west curb and gutter in that cul-de-sac. Obviously either the sewer or the curb and gutter have been mislocated. This configuration of the sanitary sewer cannot be maintained by the City until it is installed as shown on approved utility plans for Stonehenge 6th. Because this might necessitate relocation of the sewer we will be unable to release certificates.of occupancy on any building which ties into this line. Please have your engineer submit a set of plans on this area to the City Development Engineer showing the existing con- figuration of curb and gutter, water main, and sewer main so a determination can be made as to how to best correct the problem. If you have any questions concerning this matter, please call. Sincerely,, �014J_4 Bob Zakely Chief Construction Ins ector cc: Don Parsons Mauri Rupel-,'*' Dave Stringer Tom Mannschreck M M kkc- NGINEERING DIVISION EXT. 728 June 20, 1979 Reid Rosenthal Osprey Homes 300 Spinnaker Lane Fort Collins, Colorado Dear Reid: on June 18, 1979, Dave Stringer of the City Engineer's office drove past your Stonehenge 6th development and noticed that a berm and sprinkler s'�em iiad been placed directly behind the vertical curb and gutter on Stuart Street. Approved utility plans for the area show a 4' sidewalk behind the curb and gutter. This is the same situation as on Stuart Street in Stonehenge 4th where a berm and sprinkler system was installed and 4' sidewalk shown on approved utility plans omitted. You were informed of that error over a year ago and I have correspondence from your contractor, Keifer Concrete, dated February 9, 1979, that this 4' walk will be installed with work to begin this spring. Please be advised that the walk along Stuart in the 6th filing should be completed at the same time in order to avoid possible delays in the release of building permits and certificates of occupancy in this filing. If you have any questions regarding this matter, or if you need further information, please call. Sincerely[ / PRobZake 4 Chief Construction Inspector cc: Don Parsons Mauri Rupel--,� Dave Stringer Tom Mannschreck -__(303) 484-4220 ENGINEERING DIVISION EXT. 728 August 8, 1979 Mr. Reid Rosenthal Osprey Biomes 300 Spinnaker Lane Fort Collins, Colorado Dear Reid: One of the City construction inspectors recently discovered that the utility plans for the Sixth Filing of Stonehenge Subdivision did not require a seven -foot wide sidewalk to be installed adjacent to Lemay Avenue in conjunction with this development. This is an oversight which we apparently did not discover during our review of these plans. This sidewalk is required by the City Code and specifications, and we trust that you will take the necessary steps to construct this sidewalk along the lemay frontage of the Sixth Filing. In addition, please note that I am forwarding a copy of this letter to Dennis Donovan of Cornell Consulting Company. We will need an as -built which includes this sidewalk and the appropriate bike ramps at radii prior to final acceptance of this subdivision. As always, the City will reimburse you for installing a seven -foot wide rather than four -foot wide sidewalk along Lemay. If you wish to have an addendum to your utility agreement for the Sixth Filing which further guarantees this participation, please advise me so that I may prepare the document. The City regrets any inconvenience this apparent omission may have caused you. However, considering the number of utility plans which Cornell prepares and the number of plans the City reviews, I suppose it is inevitable that such a detail is occasionally overlooked. Regardless, your cooperation in clearing up this matter will be greatly appreciated. Sincerely, Ao�; .AW40v, Marc Civil Ihgineer cc: Dennis Donovan Bob Zakely M CITY OF FORT COLLINS P.O. BOX S80, FORT COLLINS, COLORADO 80S22 PH (303) 484-4220 ENGINEERING DIVISION EXT. 728 August 21, 1979 Kiefer Concrete, Inc. 360 Linden Street Fort Collins, Colorado Re: Stonehenge Subdivision, Sixth Filing Dear Sirs: Recently your company completed the concrete work in the above referenced subdivision. however, the catch basin on Dryden Court was not built according to the details specified on page 13 of the approved utility plans. Because plate steel is very slippery when wot, the concrete top catch basin has been specified for new construction of this type. - Since I had several discussions with the formsetters on the jobsite concerning this catch basin, and Mr. Fd Kiefer called this office to specifically inquire about this catch basin, I do not understand how this error could bave occurred. Before any concrete work in this subdivision is accepted by the City, this catch basin must be removed and replaced according to approved utility plans within thirty (30) days. If this situation is not corrected by September 25, 1979, I will have no choice but to take action against your bond. I sincerely hope these measures will not be necessary and thank you in advance for your cooperation in this matter. Sincerely, 1114f A & Matt J. Baker Engineering Construction Inspector cc: Mauri Rupel Reid Rosenthal Bob Zakely Subdivision File Correspondence File 05 Q6TiCLJ REq" ROSENTHAL PrE%Wmt ROBERT G. BUTLER Exec. Vice President 303/226-4747 300 SPINNAKER LN., FORT COLLINS, November 9, 1979 Mr. Roger Krempel City of Fort Collins`. r P.O. Box 580 Fort Collins, CO 80521 Dear Roger: After delivering my letter of November 7th to your office on Wednesday,:. morning, I met with Mauri Rupel, Dave Stringer, and Bob Smith to discuss our Stonehenge and Landings developments. As always, they were cooperative and helpful in reaching agreement as to the methods of completing our un- finished work. I believe that only one detention pond in Stonehenge remains unsolved as to the ultimate development. The pond is built now and presently has only a very small portion of its upstream basin developed. -It is not a hazard to the public as it exists now, and I will work with Bob Smith for agree- ment and construction of that pond. Otherwise, agreement was reached on the following points: 1. The "As -built" drawing of the Horsetooth Road and Landings Drive intersection needs additional information provided. I will have Mr. Dick Rutherford of Stewart G Associates provide that information next week. Your staff agreed that no reconstruction of the intersection (other than raising a manhole in the entrance island) will be necessary. That manhole will be raised as soon as George Weitzel, who installed the sewer, can schedule the work. 2. With the exception of the detention pond in Stonehenge mentioned above and another, (Pond D), scheduled for ,construction as soon as weather allows, we agreed that the detention systems are adequate. Orifice plates are to be installed on all release structures (culverts) requiring one. I will submit a drawing of the type of orifice plates to be used with the culverts in November after discussions with contractors. After approval by your staff, I will order the installation of all detention pond release structure apparatus to be completed by May, 1980. STONEHENGE THE LANDINGS BOARDWALK PARK PLACE CREGER PLAZA