San Jacinto -- Cataloging Unit 18070202

• Santa Ana Accounting Unit 180702
  
• Southern California Coastal Subregion 1807
  
• California Region 18 (There are 135 cataloging units in this region.)
  The state composition by area is 100.0% California.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1965.2 km² ( 759.1 mi² ) [% in USA = 18.90, % in Region = 44.44]
  The area from the USGS is 757 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 580)

  IV. Elevation Analysis

  This analysis is based on 784288 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 819.1 m ( 2687.3 ft ) [% in USA = 67.55, % in Region = 55.56]
  The elevation standard deviation is 471.4 m ( 1546.6 ft ) [% in USA = 95.50, % in Region = 75.56]
  The coefficient of variation is 57.6 %.
  The vertical relief is 2834.6 m ( 9299.8 ft ) [% in USA = 97.92, % in Region = 82.22]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	390.9	463.2	480.5	487.0	531.6	601.8	691.1	854.5	1229.9	1550.6	3225.5
  feet	1282.5	1519.7	1576.4	1597.7	1744.1	1974.4	2267.4	2803.4	4035.1	5087.2	10582.2

  

  V. Map Line Analysis

  Note- percentiles are for the feature density, not for the raw total lengths.
  

  line type	km	mi	km/km²	mi/mi²	% in USA	% in Region
  Perennial Shoreline	171.5	106.6	0.087	0.140	51.11	55.56
  Intermittent Shoreline	14.6	9.1	0.007	0.012	81.62	78.52
  Perennial Streams	338.4	210.3	0.172	0.277	35.72	31.11
  Intermittent Streams	639.4	397.4	0.325	0.523	48.51	51.85
  Canals	99.3	61.7	0.051	0.081	85.22	80.00
  1° roads	80.1	49.8	0.041	0.066	86.31	77.04
  2° roads	0.0	0.0	0.000	0.000	15.35	73.33
  3° roads	149.6	93.0	0.076	0.122	63.38	80.00
  4° roads	4692.6	2916.5	2.388	3.842	95.50	86.67
  Total Roads	4922.2	3059.2	2.505	4.030	94.88	85.93
  Railroads	58.5	36.4	0.030	0.048	39.51	53.33
  Pipes and Powerlines	5.4	3.3	0.003	0.004	13.78	17.04

  
  Of the natural water in this HUC, 56.19% (by length) is intermittent [% in USA = 56.56, % in Region = 60.00]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

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  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu