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RDA MINS 19860128 ADJ M I N U T E S RANCHO PALOS VERDES REDEVELOPMENT AGENCY ADJOURNED REGULAR MEETING JANUARY 28, 1986 A joint meeting of the Boards of Directors of the RANCHO PALOS VERDES REDE- VELOPMENT AGENCY, the ABALONE COVE LANDSLIDE ABATEMENT DISTRICT, and the KLONDIKE CANYON GEOLOGIC HAZARD ABATEMENT DISTRICT was called to order at 7:30 P.M. at the Ladera Linda Community Center, Rancho Palos Verdes , by Chairman Hinchliffe. REDEVELOPMENT AGENCY DIRECTORS PRESENT: Hinchliffe, Hughes, McTaggart, Bacharach ABSENT: Ryan ABALONE COVE DISTRICT DIRECTORS PRESENT: Gilmore, King, Medve, Sheridan, Warner KLONDIKE CANYON DISTRICT DIRECTOR PRESENT: Hotchkiss, McCarthy, Probert, Younggren, Zelt STATUS OF REDEVELOPMENT CHARLES ABBOTT, City Engineer brief- AGENCY PROJECTS ly reviewed findings and recommenda- tions of the panel formed by Dr. Ehlig two years ago, including dewa- tering and redistributing the mass of the landslide to lessen the driv- ing force of the slide. Drilling of wells and pumping of underground water has succeeded in slowing the movement on the western side. On the eastern side more emphasis on drainage control is necessary to keep the water from going underground, directing the runoff into areas from which it can be pumped and drained into the ocean. Also major relocation of material in certain areas can have a dramatic effect on the possibility of stabilizing the landslide. On questioning about irrigation from farming, it was noted that drip irri- gation systems are not damaging because of the rate of evaporation, it eva- porates, and heavy rain should not be a problem if it runs off into the ocean, but where water goes directly into the slide plan it is a problem, particularly when it goes right into the top of the slide. STATUS OF LEGISLATION EXECUTIVE DIRECTOR GULUZZY reviewed the City' s negotiations with the State Legislature last year on AB-1461 to channel federal funds to 705CP/MIN16.1-4 -1- January 28, 1986 the City for landslide mitigation. The final Bill provides for two million dollars to be funded by off-shore oil revenues. That funding is still subject to Congressional action for approval and distribution to the State, and to the City. SB-959 is for shore protection projects, drawing from off-shore oil drill- ing. These are monies the City can apply for from the County; competitive with other cities, there is a possibility of getting some of this money. HR-3179 is for coastline improvement by the Corps of Engineers, and if ap- proved there is a good chance the City can get money from that Shore pro- tection Act. All of these possible funding sources are being monitored. HUD Community Block Grant funds may be allocated for slide mitigation. Last year those funds ($150,000) were used for Palos Verdes Drive South project. CHAIRMAN HINCHLIFFE noted that organization of the Redevelopment Agency was a way for the City to approach the funding for slide mitigation. Progress has been made in working with the State to obtain the two million dollar allocation. If that money comes through to the City, and the Panel of Ex- perts agrees with the intended direction, then that money will go to pro- ceed with recommended work with the hope that it will have an impact on the slide. KLONDIKE CANYON DRAIN MR. ABBOTT stated that the Klondike District has done a study of the whole area of the Canyon, the basins and the old culvert under Palos Ver- des Drive South as well as the drainage below the Drive under Yacht Harbor Drive, Seawall Drive and un- der houses and on to the ocean. The City has also looked at the area, the retention basins and upgrading of the pipe under the road and on below the road to the ocean, and the outlet structure at the ocean which can be a continual maintenance problem. It is important that this drainage be up- graded. Once a decision is reached by the District on the size of pipe to be used under the road, that drain can be designed and constructed. CHAIRMAN ZELT stated that since the pipe under Palos Verdes Drive South was repaired and improved by Palos Vedes Properties two years ago, there is continual flow of drainage under the Ruth house. Also the artesian flow from the 6" pipe at the beach has been monitored and is flowing 1iMG per month. That drainage may indeed be responsible for slowing movement in Klondike Canyon. He noted that the inclinometers have been damaged by movement and there have been no readings taken for some time. CHAIRMAN WARNER stated that Abalone Cove District has no slope meters, how- ever Dr. Ehlig has monitoring stations and he feels that the movement in the western part of the slide has slowed; in some areas it is practically stopped. There have been two years without heavy rains. He reported that the District has completed Project No. 2, installing additional wells and pipelines. Since organization of the District, $750,000 have been spent on operating, including purchase of the existing wells; $244,000 was spent on 705CP/MIN16.1-4 -2- January 28, 1986 Project No. 1 , the Altamira Canyon Pipeline, and $198,000 on Project No. 2. He asked if the Abalone Cove District might benefit from the two million dollar grant approved for the City. CHAIRMAN HINCHLIFFE stated that the funding was sought by the Redevelopment Agency to deal with the Portuguese Bend Slide itself. Abalone Cove Dis- trict was the initial agency, and Klondike District was the second in place. This left the Portuguese Bend area where an Abatement District was not feasible to deal with the problem. The City is spending $150,000 to $175,000 on the road each year - .8 mile of road. It, therefore, made sense to attempt to get some funding to do something about the Portuguese Bend slide. CHAIRMAN ZELT stated the hope that public interest might be generated to make mitigation of the slides a city-wide project and make additional fund- ing possible. TECHNICAL COMMITTEE MR. ABBOTT stated that the Committee will convene in April or May to re- view additional data. The Committee consists of 17 volunteer geologists and engineers formed in November, 1983. They first met in November of 1983 to review existing data and for- mulate a plan for further analysis. In January 1984, the Committee met again to discuss additional information and develop a conceptual plan by which the City could acquire additional data for a more in-depth analysis and design of corrective measures. They came to the conclusion that there is a 100% probability of slowing the slide and an 80% possibility of stop- ping it. The data accumulation has continued during the past two years. The Committee will reconvene and review the data, and provide further re- commendations. STATUS OF FLYING TRIANGLE MR. HUGHES reported that the Flying LANDSLIDE Triangle slide is at the top of the hill, bounded by Crest Road, the Crenshaw right-of-way, Paintbrush Canyon and Klondike Canyon. It is moving primarily to the west and east into the two canyons. It is entirely separate from the Portuguese Bend slide. Los Angeles County indicators show no movement between the Flying Triangle and the Portuguese Bend Landslide. In that area, however, the Flying Triangle movement into the Paintbrush Canyon is tremendous. It has the potential of seriously interfering with the drainage control pro- jects. Loose debris is moving which dams the water and can result in large amounts of debris moving all the way down Klondike Canyon and to Palos Ver- des Drive South, with poten-tial for serious damage. The City of Rolling Hills is officially on notice from the City of Rancho Palos Verdes and it is hoped that something con-structive can be done between the two cities. The Redevelopment Agency will be dealing with drainage control measures and it is important that this effort will not be impacted by slide activity from uphill. The movement is different from the Portuguese Bend landslide in that there is no water in the slide - the water is going through the fill but once the movement started, it continued to move. The area has 705CP/MIN16.1-4 -3- January 28, 1986 slid before and it buttressed itself, stopped, eroded clean, and now is moving again. The City of Rolling Hills must give consideration to dealing with the problem. The possible effect on Klondike Canyon could be devastating. CHAIRMAN HINCHLIFFE thanked the members of the District Boards for meeting with the Redevelopment Agency, stating the appreciation of the City for the actions being taken by the Abatement Districts. He stated that Supervisor Dana is supportive of the Agency and the Districts and their efforts to mi- tigate the slides, however, because of other commitments and budget re- strictions, it is doubtful if much funding will be forthcoming from the County. Also, he noted that the City is looking at needs that exceed cur- rent funding. He suggested that additional meetings of this kind be held in the future for the purpose of cooperation and coordinating efforts. ADJOURNMENT There being no further business at this time, CHAIRMAN HINCHLIFFE or- dered the meeting adjourned, the time being 9:15 P.M. _____::::::=1:4 ncy Chair an ATTEST: ,r Al . /4 k. . 404 'Agency Secretary 705CP/MIN16.1-4 -4- January 28, 1986