20211210 10571100 1.0 TRUE USACE SPL Compensatory Mitigation Sites To compile these data, compensatory mitigation maps from Army Corps permit files were digitized by manually scanning paper copies or using electronic versions. Attribute data were collected and interpreted by Regulatory Division staff by searching Department of the Army (DA) permit files, including mitigation plans and mitigation monitoring reports. Due to variances in mitigation mapping formats and changes in the regulatory program requirements over time, for some cases, some data elements were extrapolated or assumptions were made based on the best available information in the file. Regulatory staff then identified geographic control points on the digitized maps and mitigation polygons were numbered to correspond with submitted attribute metadata. In some cases, applicants provided GIS data that could be incorporated directly into this overall GIS data layer.Following compilation of the data, digitized mitigation maps were submitted to GIS professionals to map by hand (or merge, if submitted in GIS format) within ESRI ArcMap. GoogleEarth was used to geographically locate many of the sites. A geographic basemap was uploaded from ESRI and in most cases ESRI World Imagery WGS 1984 Mercator Auxillary Sphere was used with coordinate system NAD83 (http://www.arcgis.com/home/item.html?id=10df2279f9684e4a9f6a7f08febac2a9). Topography and other physical features were used to visually locate the boundaries of each polygon for accurately placing mitigation sites in geographic space.Following GIS mapping of the mitigation sites by GIS professionals, the sites were individually reviewed for mapping errors, overlapping polygons, or discrepancies, also using basemap ESRI World Imagery WGS 1984 Mercator Auxillary Sphere. In some cases DA permit files were reviewed again to obtain more information about mitigation polygons or attribute data. In addition, ArcMap tools were used to eliminate overlapping polygons, using either Erase/Replace, Integrate, Eliminate, or Manual Adjustment. See Mitigation Quality Assurance Quality Control (QAQC) Procedures.After GIS mitigation maps were completed in ArcGIS, the Operations & Maintenance Business Information Link (OMBIL) Regulatory Module version 2 (ORM2) database was queried to output a report for all the mapped projects. These additional attribute data were then joined to the mitigation map attribute data using a common field (‘DA-number’).Data range: The LAD Regulatory program began compiling mitigation map data for sites in Southern California and Arizona in 2011 for years 2009-2010 resulting in about 114 Permittee Responsible compensatory mitigation maps, resulting in a fairly complete dataset for mitigation permitted across the 2009-2010 time range. In 2012, data was compiled from years 2011-2012, resulting in a near complete dataset. In addition, paper files dating back to the 1990s to about 2006 are sorted annually and any projects appearing to have required compensatory mitigation are set aside and mapped. Therefore not all pre-2009 mitigation sites have been mapped nor do we expect to map all pre-2009 sites.Disclaimer: These mitigation data are not a comprehensive list of all Corps-approved permittee-responsible compensatory mitigation sites for the Los Angeles District. These data are not to be used for official compliance, enforcement, or legal matters. A data point or polygon may represent one or more DA files. A mitigation site may or may not have been implemented, or implemented in full, and may or may not be an active or completed mitigation site. Mitigation success criteria are evaluated based on the permit conditions and on-site inspections and not the maps or map features provided (including the shape, size, acreage, placement, or attribute data). A mitigation site may not be fully representative of the actual mitigation site nor is it a substitute for the areas provided in the DA permit and Corps-approved mitigation plans. Author: U.S. Army Corps of Engineers, Los Angeles District, Regulatory Division, 915 Wilshire Blvd., Los Angeles, California 90017. Point-of-contacts: Daniel P. Swenson (Daniel.P.Swenson@usace.army.mil) 213-452-3414, Bonnie L. Rogers (Bonnie.L.Rogers@usace.army.mil) 213-452-3372. Data-mappers: Various Army Corps of Engineers staff. Software used: ESRI (Environmental Systems Resource Institute) ArcMap 9.3. and 10.1. USACE US Army Corps of Engineers Los Angeles District Compensatory Mitigation sites /9j/4AAQSkZJRgABAQEAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0a HBwgJC4nICIsIxwcKDcpLDAxNDQ0Hyc5PTgyPC4zNDL/2wBDAQkJCQwLDBgNDRgyIRwhMjIyMjIy MjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjL/wAARCADIASwDASIA AhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQA AAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3 ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWm p6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEA AwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSEx BhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElK U1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3 uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD1pJL0 vsFxbbgcNgZOcVcgE4VjO4ZixI29AKaljaxyb1hCtndketT8UhCueBTOadSYouAgOCCRSsMOw9DS hckCmt8zEnqTTAKeH45qMAd8mlYjOQMCgBwO44OAfWk6HBpKdvbPWgA60Ubz3AP4UmVPGCPoaVgF yCaKPl/vEfhSnGByee+KLAJRS7gBjJ/Kk3L6H86LALg0mOnv0oBGeF/WlYgDA69zRYB6/LxnJ70x gByKbmlBycHvwaYBRSYOeKUA+lKwBRRRSAKKKKACiinKM0AKowKWiiqGFFFFABRSZ9KTd7UAI8sc bKruFLcDPekNxCOsqf8AfQpJY4512yoGHoay3gWKQqmnAoXAVlJyACOf5UAapuIQceamf96nqyuM qQR6g1mWttHI5SWxKYG7cTnJ6fyrRhhjt4hHEoVB0AoAQEEZBzSbgOpFZSTPGrKrEbhj6e9MyT1J JosI1jLGpwXUfjSGaIf8tF/OsqkbO07RlscZ9aLAaP2+2BP75VIJ4PB4OKWaffazS2uHcISqjn5s ZA/lWRH5yTFjbwMT1b15/wAmtKxaTeyG3jjjIyWQjk9uPpQBVm1K7UsYbKR1CbhmNgSfpj8Mf0p1 xd6gl+UitC1uVChyOj9cnvjGfxArUIIPNJQBhx6vfvJ5a2B3Bow4OfkDAk5wOxAH480+HUNSCKst kxIEYY7TliR8x4GODnv2rYxjml6CgBrMFHuegpQMAD0pFUAZAwTyadQA1XViQDyDg1JkAAEZ9KbT gCTnsKAIrjzWjAgYIc8kj/PtVc/2ln/XQkcZyvtz+tW6eq+tAENmsyk+eysR0K8VMcHsacu1WP0P 8qjLEAsBQAuP9k/nSkKuDg/nWcNTlAy9nMD7D3xRJqTpk/ZZWKnoB9P8aANHgHODzR1PBOfelVwy qSMEjODS7RjFAw6D5utNGGJp/GMEZHvTQm05zxQAhBFJTuGFAX1pWENpy96CuBQtAx1FFFMBCcCm 7jTm6UykwCiiikIKKKKAHKeadUdKCRTuMxaKKKokKKKKACrtk+QY+45FUqfE/lyK3oeaANY/dWm0 oIIwenY0beMg5FIY09KGGRj1o6vj05oPb60ALSBgSQCCR19qbNMkELyyHCIMk47VB9vswC32iL+H PzDuMj8xQBNM9yCnkiIjOGD5HHtirAYEdhVBNUsnjR1uI/mUMF3DOPp+NSwXcF0GNvKkm3g7Wzg0 DLHmRGTyt6+ZjO3POKfgYxVQ2UUl2l0UUTIMB6kuY2lQKrlSDn2PH+T+FL1G7dCUYG7HUCmknpmq a2lxkA3knLc/T0q1bwPFDsllMr5PzUyRaXkGn7TtxnmmEZGGzQAHPU0AnIFLEiJEI1ztUYGTmnqA BQMWjH5UUUAU7iS7ilX7PCJVIO7JA57d6Tzr8sv+ioBkZ+ccev5VdoJxQBBaSyzRs00XlMGwAe4w Of51OSo/ipmT60nWlcCUYPRhRg+lRdKkBoAKQrTuvTr6UlMBhBFJUlIVzSsAyilIxSUhBRRRQBjU UUVYgooooAKfHGZXCimU+NzHIGHagDRd0hi3OcKMDP6Uw3ttG5U3ESsG2kFxnPpULXEVxGYp0wrd cE1BNZ2SuT5QbcMkliefX9T+dIZYbVbRHQNMrrIcIVGR2zyOnUVJ9usnXK3UXI3D5xyM4/nWOllb rCkbIZNhJDOeecenHYflT4bO0iZT9nB2jauGIxyD6+oFAGpHJbahbEqVlj3bWB7EHofyqI6VYMoX 7OmFIOATwQMD9KntBCkZMEewE/MM9aoSaPOZzJHeNHEZGcxoD/F1yc57/wCFAFk6bZ+bn7MmSuCe egxj+VTw20MBYxRhc9cVQj0ueOaNxePtVw7DnLYAGDz6D9aaujzJvK38u5mL5I6MSCePTAIwfWgD bHSmt941FYxPBZxQySmV0XBc9TUzDmkxjTSqGMhff8uANuO/rmkpQSDkUCH0UAqaCQO4pjGtwtKO gpTyKZ5g6HrQA+kJwKWmvzxQAK2evWlbpTNhp2CFPOaAG0UUVIgqGf7QADBjIB4Pc9vwqaigCgs9 +JArPaljjKk4x9KmhOol4hN5OzJ3svXHaiaxhn3bg2Sc8HocYzVqIBI1QdFAApjHkYooDY4zVKe9 aOZkFtKTkAMOnJxTAu0wjFR2s7XEW9onjOcYYYqcigCOigjBoqRGNRRRViCiiigAooooAKKKKACi iigCa3nMLc8qeorQVwy7lOQfSsmnxyvGflOKBmqXA6qCfSgAEdcH0NU4bkM5EmBnoavIoPze1IAH ycmk3E9aTAV344Y5NLt+brxjNACnHakpQoJNIRg0mAUCKI7soCGILfWij6UJgPC7V2jio/L+YMQM jjNPU87T17GgOC2O9MY6imAkuOeKfQAU1ulOpCM0AMoopdpqRCUUUuOM0AJS5pKKAFBxTl5+b1pl PBGOKaGLQGPQnmikIz9aYDjg9R+VJtX0NIDn60tAGFRRRTJCiipYIfPYqHAb0PegCKipp7Z4CM8g 9xUNABRRRQAUUUUAFFFFABVi3umh+U8r/Kq9FAGwSGVWB60KJPPLM48sqAq479zVC3uPLG1z8var 8ciSIGQ5A6+1IZLTWHehWzmlIyKBjKco4zSEEU4dBSQikdLjLsyzTKWJJw3qc/z/AJ01tKTeziaY N1xu9sVoUd6YyKEeXGqFidoxk9TUtRlCHIx3p+QOtAC0Um4UtADdvNOoooACM0mOMUtFADMGkp7D IplIQUUUUgJKZJKsSFm/KlB7Gq97C0sYZeq549aoY8XcDDl8fUUqzRMMrKMVkUUxXCiiigQUoJU5 BIPtSUUAWIrmRXXcxK55B5q9JZwyEnbgnuKy0ba6sRnBzitZbmFlB8xR9TSGjMnhMEm3OfQ1FWtL HHdR4DAkdCD0rKZSrFT1BxTASiiigQUUUUAFFFFABT4pWicMpwaZRQBtROskYdeh/Sn1ixSvC25D j29a1YLhZ0yOGHUUhktFFFAwpR6+lJSr1I9qAEpjDmn0hGaAGUoOKCpFJSEPBzS1GDinHJ5FFxjq KYCTxThnvTAWkwDS0UAJtFG0UtFACbRSgYoqGSZkuIoxC7K+cuOiY9aASuZk6bJnXGBnio62ZYI5 h8w57EVkyxNFIUPbvTEMooooEFFFFABRRRQAqsyHKkg+1ITk5PWiigAooooAKKKKACiiigAooooA KfFK0MgdTyP1plNdtiFgpbGOB9aAN2ORZYw69D+lKTgViW+om33boZipHQLyD0qy+pMMj7NOSCB9 2kUaQOacv3v1qtFIZIkk2su4ZweoqdTwDQAtFKRg0lABSEClprHjFADakAxTVHenUkAmOc0tFFMA ooooAKKKKACiiigApCqnqAaWigDCooopkhRRRQAUUUUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUA FaFpMZI/LPJTofas+pIZDFMrD15+lAGnUU9ysAUPnDegz0qXGD1zT9isPmGfqKQyp/aluEH7w9yO Owzn+RpqaxasxUlhyR09KvCJN2Ng546UgjTAyi5HtQMfTD1NPphA3cnrSYCr1p1IABQTimAtFIGG KWgAooooAKKKKACiiigAooooAwqKKKZIVYgjSaNkC/vcZBz1qvT4pDFIHHagBhBBIPBFFXbyHcBO g4IyapUAFFFFABRRRQAUUUUAFFFFABRRRQAUUUUAFFFFAGrat5sCsfvD5TUoODyaoWSB8k7sodww ePT+VXM0hkw9fY/ypFGBTAT5Qzxu9acowOtAx1N2c5zTqKAG5OKaTmndW9qQ8GkxCU8DApo6in0I YUUm4UtMAooooAKKKKACiiigDCooopkhRRRQBoWM+4eS3OBwfamXVntzJGOO6+lUwSpyCQfarsV/ iIiQEsOnvQMo0U+Rw7bgoUnrjpTKBBRRRQAUUUUAFFFFABRRRQAUUUUAFFFFAFuwYrIxHpV/buwR 0P6VStJF8oqcAjqfWrcT5yB0PQ+tIZKUG1c9uKOlMZjsVueO1IWDAdR7UDH7hjOaUc9Oaj24PJFS A8ccCgCMNywBBKnDDPQ9f60pYmg/Kx4HPPSoLu4mgh3wWv2h842Bgv6mjyETjqKVj2FNRiyKXTax GSAelO+X3pANp6nIppGDSqe1CAdRRRTGFFFFABRRRQBhUUUUyQooooAKKKKACiiigAooooAKKKKA CiiigAooooAKKKKACiiigBLa4tpRuaZVTJwW4zjr/X8qu/2haRLH++BVxlWXkYzjJI6ckVlDTrRp WlkQs5yc56kjaf0JqzJBaSKu2JlKfw7uGGc8+vNIZotqVoFz9qiXABILAEZ/zmpIrmObcYpEfadr bSDg1lrotlcxOYlaF35ZlPPC7SM+4rQtbOC13eWCA2OpzwOg+lAFgKW5qQcCkBB4FLQMQgGmHg1J TCpzSYCUUYNICGGQQfpSEPxlRjr0oCkEEjFAHHXrThx0pjCil4PtRtPbmmAlHWikjkDb8AgqdvIx +VADtp78UYHrSUUAYVFFFMkKKKKACiiigAooooAKKKKACiiigAooooAKKKKACiiigAooooAKKKKA L1ojqCSuF6g1cK7sEdxzRRSGKq4NOoooGFFFFABUUMENrHshjSNMlsKMDJ6miigBxljXq6j8aabm Ef8ALQevFFFIBPtMfbcfopoM/XEUhx7UUUwFM0pziAn3JpC9w3/LNB9W7UUUAG24PV0HPYdqURy9 5f8Ax2iigD//2Q==