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APPENDIX B
Drainage Map ID Station # slope Channels (l or r)   Deposit Channel Boulders (med, 75, 90)     D 99 D 99 D 99 D99 Nominal Diam Superelevation Superelevation Velocity Velocity Comments-Detailed Notes
    Field Book (degrees) flow depth (l) flow depth (r) thickness width Median 75% 90% A-axis B-axis C-axis Volume Cube-Sphere   Velocity (Costa's) (Clarke)  
        (m) (m) (m) (m) (m) (m) (m) (m) (m) (m) (cubic m) (m) (degrees) (m/s) (m/s) cube-sphere  
                                      (m/s)
Camuri                                      
Chiquito                                      
  4-4-1 1 3.8-4.0 6 4.5   95.3 0.2                      
  4-4-2 1.1 2.5-3.0               5.1 4.1 2 41.8 3.47-4.31     10.3 6.7-7.4 both schist and gneiss boulders; largest gneiss boulder carried in matrix
  4-4-3 1.2 2.5         0.4-0.5                       bus buried with windows intact; laminar deposition around bus; boulders supported by coarse sandy pebbly matrix
  4-4-4 1.21       2.9                           new debris flow terrace (min. thk 2.9 m) cut by subsequent flood
  4-4-5 1.22                                   debris flow (12/17) from lateral channel depositing atop main channel deposits
  4-4-6 1.3 3               7.8 7.6 5 296.4 6.67-8.27     14 9.2-10.2 moved onto top of old house foundation
    1.3                 11.3 5 3.5 197.75 5.83-7.23     11.4 8.6-9.5 upchannel from previous boulder
  4-4-7 1.4 4.5-5.0     3.0-4.0   1.0-3.0                       imbricated boulders (1-3 m) in matrix; df deposit over flood deposit
  4-4-8 2   8 5.5   78                 2.0-3.0 5.8     evidence of a sequence of 3 events: top to bottom- coarse df, finer grained df, flood flow with fine deposition
  4-4-9 2.1 4.5 4.5           1.5 12 8.2 2.4 236.2 6.18-7.67     14.5 8.8-9.8 boulder deposited with top df event; old df exposed at base of channel with 1.5 m max boulders overlain by brownish red soil
  4-4-10 2.2 7.5         1     10 4.7 3.5 164.5 5.48-6.8     11.1 8.3-9.25 gneiss boulder; high concentration of large boulders with 1-m average dimension; about 10% larger clasts
  4-4-11 3 4.0-5.0 7 12   54                         some large (old) boulders not removed from bottom of channel; some deposition of boulders
  4-4-12 3.1 6 6 9   27.4                         major tributary debris flow channel
  4-4-13 3.2 13-14 16 10   17.4                         landslide blocked channel more likely than than superelevation
  4-4-14 3.3 5.0-6.0 9 8   26   1                    
                                       
San Julian (channel)                                      
  7-10-1 7/10/01 5 3.5   3.5 172       3.1 2.6 1 8.1 2.01-2.49     8.3 5.2-5.7 gneiss boulder
  7-10-1                   3.6 3 1.2 13          
  7-10-2 7/10/02 3.0-3.5     1.7 181     2.5                  
  7-10-2 7/10/02 3.0-3.5     7       0.5                   sequence of 3 old depsoits 7-m-thick capped by new
  7-10-3 7/10/03 3.5-5     3 111       5.3 2.7 1.9 27.2 3.00-3.73     8.4 6.3-6.9 gneissic boulder matrix supported
  7-10-3                   5.9 3.3 1.5 29.2 3.08-3.82     9.3 6.3-7.0 gneissic boulder matrix supported
  4-5-1 3.4       2.5     0.75                    
  7-10-4 7/10/04 4.0-5.0     3.0-6.0 135       6.3 2 1.9 23.9 2.88-3.58     7.3 6.1-6.8 dark gneissic boulder in a sandy gravelly matrix
  7-10-4                   4.4 2.6 1.8 20.6 2.74-3.40     8.3 6.0-6.6
  4-5-2 3.5       3     1.0-2.0                     in depositional central part of channel; upchannel from S2
  4-5-3 3.6 3 2.5   1                          
  4-5-4 4 2.5-3.5 1.5     75   2                    
  4-5-5 5                 2.0-3.0                
  4-5-6 6 3.0-4.0     1         5.6 5.2 3.9 113.6 4.84-6.0     11.6 7.9-8.7
  4-5-6 6                 5.5 5.2 1.6 45.76 3.58-4.43     11.6 6.8-7.5
  4-5-7 6.1 14               3.0-4.0                 side channel Q. las Choras, debris flow split community of San Julian
  7-10-5 7/10/05 5.5     >10 129-145       3 2.1 1.5 9.5 2.11-2.62     7.5 5.3-5.9 gneissic boulder
  7-10-5                   4.4 4.2 2.5 46.2 3.59-4.45     10.5 6.8-7.6 semi-rounded gneissic boulder near centerline of channel
  7-10-6 7/10/06         145     2.0-3.0                   old debris-flow terrace 17.4 m above present stream level; 8 cm thick carbon-rich layer over df with 2-3 m boudlers at 7.3 m height above present stream level;
  7-10-7 7/10/07 6 11   9 140       4.8 1.8 1.4 12.1 2.30-2.85     6.9 5.5-6.1 gneissic boulder
  4-5-8 7                 5 2.6 1 13 2.35-2.92     8.3 5.6-6.2 matrix of flow protected under rock; 11 largest boulders measured at this location
  7-10-8 7/10/08 5.5-6 10.6   10.6 75       3.6 2.3 1.9 15.7 2.51-3.11     7.8 5.7-6.4 gneissic boulder at constriction of channel
  7-10-9 7/10/09 4       71     3.5                   many boulders > 3m on upper bench
  7-10-10 7/10/10 6.0-6.5     5 98     2.5 6 5.3 1.8 57.2 3.85-4.78     11.7 7.0-7.8 old df terrace on east side of channel with D90= 2.5 m of semi-rounded gneiss about 5-6 m above present channel
  7-10-11 7/10/11 5.5     6 131       6.9 4.1 2.9 82 4.35-5.39     10.3 7.5-8.3 gneiss boulder
  4-5-9 8.05       3.5         1.0-2.0                 islands of rocky debris flow deposits left incised 2-3 m deep by subsequent flooding
  7-10-12 7/10/12 5.0-6.0     4 113     1.5                  
  4-5-10 8.1 4 5 12 4 71       2.0-3.0                 sequence of recent df, flood, df exposed in 4-m thick section over old df deposits; channel eroded to schist bedrock; middle of drainage filled with blocky debris; 4 degree slope on top surface of debris flow deposit
  7-10-13 7/10/13 5 5   4 90-94       9.5 5.9 2.6 145.7 5.26-6.53     12.3 8.2-9.1 dark banded gneiss boulder supported in matrix;boulder plucked out from nearby outcrop
  7-10-13 7/10/13 5               6.2 5.8 4 143.8 5.24-6.50     12.2 8.2-9.1 old boulders in df matrix
  7-10-13 7/10/13 5               7.2 6.6 3.8 180.6 5.65-7.01     13 8.5-9.4 old boulders in df matrix
  4-5-11 9                                   intact island of old df deposits with recent debris flow deposits atop in middle of channel; slightly raised bedrock bench on one side of channel; steep north-dipping bedrock foliation
  7-10-14 7/10/14 4.0-4.5 12.5   4 96       3.4 2.7 1.6 14.7 2.45-3.04     8.4 5.7-6.3 much higher trim line from flood (12.5 m) than from debris flow; augen gneiss boulder
  7-10-15 7/10/15 4.5     0.5 55                         mostly erosional scour in narrow channel; only thin deposition remaining on high terrace
  4-5-12 10 2.0-3.0 3 3   95       10.4 8.4 4.8 419.3 7.48-9.29     14.7 9.7-10.7 moved (?)-all sides of boulder appear fresh, unweathered; some parts of boulder covered by fresh deposits
  7-10-16 7/10/16 3.5-4.5 12   >2 66       8.4 6.4 3.2 172 5.56-6.90     12.8 8.4-9.3 2-m new deposit atop old terrace
  4-5-13 11 6.0-7.0 6                               at stream junction 2 separate debris flows; 1st df from 6-7 degree eastern (main) channel had largest boulders; later 2nd df down 15 degree channel crossed, ranup opposite slope, temporarily blocked channel; sandy matrix beneath blocks deposited across 2nd channel
  4-5-14 11 15.0     1.5       2                   debris flow runup on opposite side of junction of tributaries; imbricated larger boulders over inclined (5 degrees) sandy pre-event (?) surface
  4-5-15 11 6.0-7.0     5       2.5                   large incised bouldery debris-flow deposit just below junction of tributaries
  7-10-17 7/10/17 7     1.0-3 40       14.6 13.8 6.5 1309.6 10.9-13.57     18.7 11.6-12.9 old very rounded gneiss at edge of channel;recent deposit of 1-3 m thickness plastered against old df terrace
                                       
  7-11-1 7/11/01 6-6.5 8.7   1-1.5 49                         at tributary channel to west; erosional zone, very little (1.0-1.5 m deposition); old 5-m thick df terrace of angular-semi-rounded gneiss about 9-m above present channel
  7-11-2 7/11/02 16               7 5 4 140 5.19-6.44     11.4 8.1-9.0 steep side channel (fault zone?) near main channel of Q. San Julian
  7-11-3 7/11/03 4.5-7.0 10.9   1 43                         step-like irregular topography with bedrock in channel; mostly erosional section
  7-11-4 7/11/04   12.5     31       8.2 5.9 4 193.5 5.78-7.18     12.3 8.6-9.5 semi-rounded boulder of augen gneiss; eyewitness reports that this area was terrace with mangrove trees; pot hole eroded into bedrock indicating previous exposure
  7-11-5 7/11/05 5.0-7.0 7.3     31       18.4 11.5 3.5 740.6 9.05-11.23     17.1 10.6-11.8 large rock moved and jammed into place in steep scoured section with irregular slope surface
  7-11-6 7/11/06   10     34     2                   old rounded boulder in exposed df terrace 14-m high; multiple bedrock steps in channel
  7-11-7 7/11/07 8.5 12.7     40     1.5                   main channel completely clean exposing bedrock; side channels choked with boulders; df terraces exposed with semi-rounded boulders
  7-11-8 7/11/08 10.0-14.0 12     18                         U-shaped channel in bedrock without any deposits remaining
                                       
                                       
Cerro Grande                                      
  4-6-1 1 5.0-6.0 8     22.1                 12.5 7     bedrock controlled channel; channel clean of debris except for debris left above terrace
  4-6-2 1.1 6 17     37.5                         Deep bedrock scoured channel with several bedrock old bedrock base levels 
  4-6-3 2 3.0-4.0 15     13.7     0.1           7.5-8.0 4.2-4.4     at confluence of two tributaries with weir; debris flows from both tributaries, but below this point, well-sorted flood deposits; western tributary "U"-shaped bedrock channel of 18 degrees steepness in highly foliated schist
  4-6-4 2.05               0.2-0.4                   Well sorted flood deposits near quarry
  4-6-5 2.1                                   Flood deposits of sand, gravel, and cobbles in wide flood channel
  4-6-6 2.2                                   Flood deposits in channel and landslide on hillside
  4-6-7 2.3       2.5                           At Club Tanaguarena 0.5 m (top) slightly clayey reddish fine grained debris flow (?) over (bottom) 2.0 m of tan fine grained sediment
                                       
Camuri Grande                                      
  4-8-1 1 0.5-1.0     1.5                           overbank sandy flood deposits
  4-8-2 2 1               0.2-0.4                 flood deposits through University
  4-8-3 3 2     0.9-1.0                           flood deposits of fine grained material amongst buildings of Simon Bolivar University
  4-8-4 4 3     1.0-1.2         2.7 1.7 0.9 4.1 1.60-1.99     6.7 4.6-5.1 debris flow deposit covered by sandy flood deposit
  4-8-5 4.5 4.5 2   1.5         2.7 2.6 1.5 10.5 2.19-2.72     8.3 5.4-6.0 terminous of debris flow deposit near old house upstream from university
  4-8-6 5 2.5 3.05     75   0.7                     flood deposits
  4-8-7 6 2.0-2.5 1             4.1 3.6 3.1 45.8 3.58-4.44     9.7 6.8-7.5 only a little sand remaining from a single depositional event without stratification but some small imbricated boulders
  4-8-8 7 2 1                               composite deposit 1 m thick with 0.75 m debris flow over 0.25 flood deposits; top of df had been incised by subsequent flooding
  4-8-9 GPS-1       4         2.8 1.3 0.8 2.9 1.43-1.77     5.9 4.4-4.9 composite df /flood deposit with sandy matrix; evidence of 3 stages of flood by different level terraces; velocity of debris flow from small tributary
  4-8-10 GPS-2 2.5     3                           Downstream extent of debris flow deposit-large boulders in sandy matrix
  4-8-11 GPS-3                                   Flood incision cut channel 25-30 m wide and 3-m-deep into df deposits; df from tributary channel temporily blocked main channel
  4-8-12 GPS-4 4     6       1                   sinuous narrow channel
                                       
Alcantarilla                                      
  4-9-1 GPS-5 4 3.2           0.4                   mudlines show two events; deposits indicate two episodes of (cobbly) debris flows separated by thin layer of fine sand from flooding
  4-9-2 GPS-6 4     4                   10 13.6     measure channel width on aerial photos
  4-9-3 GPS-7 6 1 8   4.5                 11-11.5 11.6     measure channel width on aerial photos
  4-9-4 7.1                 2.7 1.6 1.4 6 1.82-2.26 0-0.5 3.5 6.5 4.9-5.5
  4-9-5 GPS-8 4.5-4.8       33.5       1.7 1.4 0.85 2 1.26-1.57 5 5.35 6.1 4.1-4.6 at weir v=10.7 m/s David Perez
  4-9-6 GPS-9                 2.7 2 1.9 10.3 2.17-2.70     7.3 5.4-5.9 block in matrix near tributary junction
                                       
Q. Seca                                      
  4-9-7 1 4             1                   at road crossing
  4-9-8 2-GPS 10 4.0-4.5             2 2.4 1.8 0.95 4.1 1.60-1.99     6.9 4.6-5.1
  4-9-8 2-GPS 10 4.0-4.5               3.6 2.7 1.3 12.6 2.33-2.89     8.4 5.5-6.1
  4-9-9 3-GPS-12 5       19.4       5.1 4.2 1.3 27.8 3.03-3.76     10.5 6.3-7.0 new boulder over tiles remaining of house floor
  4-9-9 3-GPS-12 5       19.4       6.3 4.4 2 55.4 3.81-4.70     10.7 7.01-7.77 schist boulder
  4-9-9 3-GPS-12 5       19.4       5.5 3.6 0.8 15.8 2.51-3.12     9.7 5.7-6.4
  4-9-10 4 GPS-11 4.5     6?       2                  
  4-9-11 5 8 2.0-3.0           2 2.0-3.0                
  7-13-1 7/13/01 9.0-11.0 5.2   3.5 10       2 1.5 0.6 1.8 1.22-1.51     6.3 4.1-4.5 mostly erosional in this section; 7-m thick old df deposit on west bank over saprolite in Tacagua schist; three bedrock bench levels in channel
  7-13-2 7/13/02 9 10.5   4 26.4     3.5 7.5 2.7 1 20.25 2.73-3.38 3 3.3 8.4 6.0-6.6 3-4 m thick blockage of channel by blocks; old df 5-6 m thick over saprolite in bank exposure
  7-13-3 7/13/03 16 6     18       3.2 2.4 1 7.68 1.97-2.45     8 5.1-5.7 steep slope of bedrock plunge; scour zone of no deposits
  7-13-4 7/13/04 10.0-12.0 8.7     21     4 1.8 0.9 0.9 1.46 1.13-1.41     4.9 3.9-4.4 thick df terrace above bedrock channel; recent deposits plastered over old df terrace
  7-13-5 7/13/05 12 8.0-12.0     12     3                   riffle and pool eroded bedrock channel; old df terrace > 10m above present channel; prominent 1.5 m bedrock bench above channel level; sideslopes 40-45 degrees
                                       
                                       
                                       
                                       
El Cojo                                      
  4-10-1 GPS-13               1.0-2.0 10 7.2 4.6 331.2 6.92-8.58     13.6 9.3-10.3 boulder in old df deposit, undercut and collapsed into channel
  4-10-2 M20 GPS-14 5.5-6 2.7   2         11.2                 11.2 m old df boulder in 13-m thick deposit
  4-10-3 M21 GPS-15 5.0-6.2 3.15 2.8   38   .5-.6   3 1.4 1.2 5 1.71-2.13     6.1 4.8-5.3 location of old weir
  4-10-4 15.1       2.1         2.8                 just below channel bedrock constriction
  4-10-5 GPS-16 4.5-5.5     3.6         2.5 2.4 1 6 1.82-2.25     8 4.9-5.5 df top with boulders in pebbly sand matrix over finer units; photo with Virginia
  4-10-6 M 26 6.5     3.5       2.3 6.8 3.9 2.9 76.9 4.25-5.28     10.1 7.4-8.2 pebbly sandy matrix between boulders; matrix supported; evidence of logjam > 2m high
  4-10-7 GPS-17   2                               eroded channel surface exposed 2 m (vertical) of old df; ~30 y old mango tree with roots wrapped around old df bldrs survived
  4-10-8 GPS-18 8     2.8         4.5                 base of old tree trunk about 1 m above bottom of incised channel
  4-10-9 M 25 8               6.6 4 2.3 60.7 3.93-4.88     10.2 7.1-7.9 channel junction; debris flow levee; tree hit by df's from both channels
    M 25 8               7.8 4.7 3 110 4.79-5.94     11 7.8-8.7
  4-10-10 GPS-19 10-10.5 4.4     17.5       10 8           14.3   stream junction old boulder on side tributary
  4-10-11 19.1 5.0-7.0     3     0.06 2                   evidence of two debris-flow events in main channel
  4-10-12 19.2 15 5     9     2                   two debris flow events in bedrock channel of side tributary
  4-10-13 M-33 4-5.5 3             3 1.8 1.5 8.1 2.01-2.49     6.9 5.2-5.7
  4-10-14 GPS-20 6 6             2.5                 five debris-flow/flood terraces with debris flow deposit on top
  4-10-15 20.1                 9.5 6.8 5.1 329.5 6.91-8.57     13.2 9.3-10.3 four sisters-large boulders
  4-10-16 20.2         20       6 4.6 1.6 44.2 3.53-4.39     10.9 6.8-7.5 about 50 m upstream from 4 sisters; gneiss bedrock channel, steeply dipping foliation on channel sides
  4-10-17 GPS-21 2.0-3.0       31.4                 4.5-5 5.2     at water intake radius curvature 31.4m
  4-10-18 21.1 6   4.5-5   24       7.7 2.3 1.2 21.3 2.77-3.44 2.5 3.2 7.8 6.0-6.7 radius of curvature 24 m
  4-10-19 21.2 6       36.2                 2.5 3.9     radius of curvature 36.2m
  4-10-20 GPS-22 7.0-8.0             2.0-3.0 8                 recent 2-3 m boulders in sandy pebbly matrix; old df boulder on top of old df terrace surface
  4-10-21 GPS-23 7.5     2.0-3.0                           partial boulder blockage in flat area; gneiss bedrock on channel sides; sandy gravel matrix
San Jose Galipan                                      
  4-11-1 1   5   4                           100 m up channel from main highway; eyewitness account
  4-11-2 2-GPS 24 1.0-1.5     2.1                           channel to west, overflow channel; deposit thickness top 60% debris flow, lower 40% fine fluvial
  4-11-3 3 2.5               3.3 1.6 1.4 7.4 1.9-2.41     6.5 5.1-5.6 boulder in street, moved by stream or rolled?
  4-11-4 3 2.0-2.5     0.5-1.0         3.2 2.3 2.3 16.9 2.57-3.19     7.8 5.8-6.4 boulders atop water treatment plant photo
  4-11-5 GPS-26 4 2             3.5 2           7.3   upstream on widening channel with exposure of old df boulder exposed beneath recent deposit photo
  4-11-6   4.0-5.0 2.3             3.6 2.4 1.5 13 2.35-2.91     8 5.6-6.2 recently deposited matrix supported boulder by sandy matrix; tree bark removed to height of 2.3 m
DM-3 4-11-7 GPS-27 6 5.1 3.4   28                 4 4.4     variable readings from GPS
DM-12 4-11-8                                     bedrock bench 6.8 m above present channel with old df boulders atop
DM-13 4-11-9 GPS-28 7               2.5 1.9 0.8 3.8 1.56-1.94     7.1 4.6-5.1
DM-18 4-11-10 GPS-29 5.5               5.3 2.3 2.3 28 3.04-3.77     7.8 6.3-7.0 large boulder deposited in sandy matrix
DM-21 4-11-11         7.1     1.0-1.5   7.2 2 1.5         7.3   median boulder size increasing; old boulders in matrix; U-shaped side channels
DM-25 4-11-12 GPS-30 4                                 box-shaped channel in bedrock with steep 60 degree foliation; old df terrace exposed in side channel; large amount of old df material removed from channel
DM-26 4-11-13 GPS-?   7.6     3.5                         very narow box-shaped channel with steep foliation; bedrock bench 0.5-1.0 m above present stream level
  4-11-14 26.1 3.0-4.0 8.0-10     10                         water flowing in this channel was slightly turbid
                                       
                                       
Osorio                                      
  4-4-15     3.0-5.0                               flow between buildings at main highway left high flow lines, estimated ave height
  4-4-16                                     rocky deposition in main channel with partially inundated houses
  4-12-1           ~20                         photo showing damage to houses along channel
  4-12-2 OSO-K 3.0-4.0 4             6.7 5.4 1.9 68.7 4.10-5.08     11.8 7.3-8.0 near Spanish fort at apex of fan bedrock controlled channel
  4-12-3 GPS-31 5-5.5 6.25     21.5       3.2 2.3 1.6 11.8 2.28-2.82 9 5.8 7.8 5.5-6.1
  4-12-3 GPS-31 5-5.5               7 6.7 2.2 103.2 4.69-5.82     13.1 7.7-8.6 old boulder caught in channel; channel bank exposure of 20-m high debris flow terrace with large boulders
  4-12-4 OSO-T                 5.7 4.8 2.2 60.2 3.92-4.86       7.1-7.9 gneiss boulder moved and left standing on end
  4-12-4 OSO-T                 6.6 4.1 3 81.2 4.33-5.37     10.3 7.5-8.3 old boulder moved slightly as indicated by 30 degree tilt in house foundation
  4-12-5 OSO-N 3 5.6     16.5       8.5 7.5 6.1 388.9 7.30-9.06 6 4.1 13.9 9.6-10.6 old boulder split into two parts by recent event
  4-12-6 GPS-32 5 7.2     23.8       7.1 4.4 3.5 109.3 4.78-5.93 7.0-8.5 5.5 10.7 7.8-8.6 boulder carried in matrix
  4-12-7 GPS-33                                   debris flows came from above 7m high waterfall in blue "piedra azul" gneiss
San Julian (Caraballeda fan)                                      
  7-6-1 7/6/01 3-3.5 2             2 1.5 1 3 1.44-1.79     6.3 4.4-4.9 at eastern end of highway bridge
  7-6-2 7/6/02 4 3.5     96       2.9 2.3 2.2 14.7           semi-rounded gneiss
                      4.3 2.5 2.1 22.6           semi-angular gneiss
                      4 3.1 2.1 26 2.96-3.68     9 6.2-6.9 semi-angular gneiss
  7-6-3 7/6/03 4 2.3     168   1.3                    
  7-6-4 7/6/04 3 1     128                        
  7-6-5 7/6/05 2.0-3.0 2     213       3.9 3.1 1.6 19.3 2.68-3.33     9 5.9-6.6 semi-angular
  7-6-6 7/6/06 4 1.7     79       4 2.4 2.2 21.1           boulders evulsing at bend of channel
                      4.1 3.8 3 46.7 3.60-4.47     10 6.8-7.6 thin deposit because debris flow spreading at bend in channel
  7-6-7 7/6/07 3 3.0-6.0     434       5.3 2.1 1.7 18.9 2.66-3.31     7.5 5.9-6.6 semi-angular
  7-6-8 7/6/08 3.5-4 >4             5.9 2.8 1.1 18.2 2.63-3.26     8.6 5.9-6.5  tabular
  7-6-9 7/6/09 4.5 4             4.1 3.5 1.4 20.1 2.72-3.37     9.6 6.0-6.6 debris flow completely buried first floor of houses
  7-6-10 7/6/10 4.5 5                               fines on top of matrix-supported debris flow
  7-6-11 7/6/11 3.0-3.5 2.0-2.5             6.5 5.7 1.3 48.2 3.64-4.51     12.1 6.9-7.6 at intersection with main highway
                      5 2.3 1.6 18.4           tabular
  7-6-12 7/6/12 3.5 2.5-3.0           3 4.4 3.3 1.6 23.2 2.85-3.54     9.3 6.1-6.8 Boulders left deposited on high-rise patio; large boulders left in matrix above road
  7-6-14 7/6/14 4.5-6.0 3           2 5.2                 Old df terrace 17 m high displays a sequence of at least 4 events; 10YR (yellowish brown) sandy matrix w/o Tacagua schist
  7-7-1 7/7/01 2.5-3.0 1.75-2.5           1                   Sequence of 3 events with a capping debris flow
  7-7-2 7/7/02 3.0-3.5 2.0-2.5     267     1                   sandy gravel
  7-7-3 7/7/03 2.5 1.0-1.5                               fine sand with not much damage to structures
  7-7-4 7/7/04 3.5 1.8-2.0             3.1 2.6 1.4 11.3           semi-angular
                      3.9 2.7 2.2 23.2 2.85-3.54     8.4 6.1-6.8 blockage of large boulders and tree trunks protected downstream house
  7-7-5 7/7/05 4 2.5-3     238     2                   debris blockage
  7-7-6 7/7/06 3 0.5     239     <.5                   sandy deposits on a side street (perpendicular to flow direction)
  7-7-7 7/7/07 4 2             1.75 1.27 0.74 1.6 1.18-1.46     5.8 4.0-4.4 gravelly sand
  7-7-8 7/7/08 5-5.5 2                               old df boulders incorporated within wall and partially buried in lawn
  7-7-9 7/7/09 2-2.5 1           1                   5 m minimum thickness of old debris flow terrace with graphitic schist and gneiss boulders
  7-7-10 7/7/10 3.5-4 1.5           <0.5                   little damage to trees along road, impact marks limited to below 0.5 m height
  7-7-11 7/7/11 3.5 0.5-1.0           1 2.1 1.3 0.7 1.9 1.24-1.54     5.9 4.1-4.5 mostly coarse sands with a few large boulders; flow through irregular topography backyards between houses
  7-7-12 7/7/12 4 2.5   2         5.5 4.2 1.2 27.7 3.02-3.75     10.5 6.3-7.0 very coarse sand with flow down street
  7-7-13 7/7/13 5.5 2           2                   large boulders filling house and yard causing collapse of wall
  7-7-14 7/7/14 6.0-7.0 2.0-3.0           1.5                   large boulders supported by sandy matrix
  7-7-15 7/7/15 4 1.75           2.5                  
  7-7-16 7/7/16 6 2.5           2.5                   small boulders 20-30 cm in gravelly sandy matrix with some laminations
  7-7-17 7/7/17 5.0-6.0               2.8 1.3 0.8 2.9 1.43-1.77     5.9 4.4-4.9 Plaza de Piedras-old df boulders around house built in 1917
  7-7-18 7/7/18                 4                 old df schist boulders exposed in 15 m high cut in red soils
  7-7-19 7/7/19 5 3           2.0-2.5 2.5 2.5 2.5 15.6 2.5     8.1 5.7 cube of gneiss
  7-7-20 7/7/20 4               2.7                 side channel with 3.5 m-high bank exposure of 3 old  events with mostly schist fragments but rare gneiss boulder in df deposit
  7-7-21 7/7/21 6       17       1                 side channel with 3-m high incised box channel exposing 3 previous events, lowermost cemented matrix of gneiss df
  7-7-22 7/7/22 5.0-6.0 >2.5     141       2.5 2 1.7 8.5 2.04-2.53     7.3 5.2-5.8 along Q. San Julian n. village San Julian with 15-.3m high cut exposing 3 units-df/fluvial/df topped by red soil; lowermost unit with tan 2m boulders
  7-8-1 7/8/01 3.0-4.0     2.5 50       4.8 4.4 2.4 50.7 3.70-4.59     10.7 6.9-7.7 along Av. Principal one block to beach; coarse sandy matrix atop gneiss boulders
                      4.8 2.8 1.4 18.8          
  7-8-2 7/8/02 3.5     1.7         4.5 3.8 1 17.1 2.58-3.20     10 5.8-6.4 along Av. Principal 1/2 block from beach
  7-8-3 7/8/03 1 1.1                               at old beach line no boulders found
  7-8-4 7/8/04 1.5     2.2         2.5 1.5 0.8 3          
                      3.8 2 1.6 12.2 2.3-2.85     7.3 5.5-6.1 gneiss boulders reached road at old beach line
  7-8-5 7/8/05 3.5 2.3     13       1.3 0.9 0.8 0.94 .98-1.21     4.9 3.6-4.1 flow between buildings with road width as channel
  7-8-6 7/8/06   0.6                               eyewitness said large boulders were removed
  7-8-7 7/8/07 3 1.8-2.0   3.4         0.9 0.6 0.5 0.27 0.65-0.80     4.1 3.0-3.3 resident reported removal figures equivalent to an average thickness of 3.4 m deposit
  7-8-8 7/8/08 3 1.4-1.7             1.6 1.1 0.9 1.6 1.17-1.45     5.5 4.0-4.4 flow seived through houses
  7-8-9 7/8/09 ? 1.4             2.3 2.2 1.2 6.1 1.82-2.26     7.6 4.9-5.5 benched slope very irregular
  7-8-10 7/8/10 2.5-3.5 1.5             3.1 2 0.9 5.6 1.77-2.20     7.3 4.9-5.4 gneiss boulder
  7-8-11 7/8/11 3.5 4.2             2.1 1.7 0.8 2.9 1.42-1.76     6.7 4.4-4.8 old df deposit noted beneath foundation of crushed house
  7-8-12 7/8/12       2.7                          
  7-8-13 7/8/13 3.5-4.5     >3       1 3.8 2.9 1.7 18.7 2.66-3.30     8.7 5.9-6.5 previous ground surface to 1st floor roof filled with boulders, 1 m boulders on roof top
                      4.8 4.8 2 46.1 3.59-4.45     11.2 6.8-7.5 old boulder from previous event; street eroded and served as channel; eyewitness account of events
  7-8-14 7/8/14 4 2.5   2         3.1 2.4 1.9 14.1 2.42-3.00     8 5.6-6.3 about  1m of erosion beneath road level
  7-8-15 7/8/15                 6 3.4 1.3 26.5 2.98-3.70     9.4 6.2-6.9 old mica schist boulder built into house foundation
  7-8-16 7/8/16 5     2.0-3.0         5.6 4.3 1.7 40.9 3.45-4.28     10.6 6.7-7.4 within a large boulder field; boulder resting on matrix over concrete with steel rebar foundation
  7-8-17 7/8/17 2.5     2       3.5                   old 1 m boulder in red soil matrix beneath recent deposits; local irregular step topography
  7-8-18 7/8/18 3.5-4.0     1.5   1     4.3 3.2 2.5 34.4 3.25-4.04     9.2 6.5-7.2
  7-8-19 7/8/19 4     2   0.3-0.4     6.1 3.5 2.6 55.5 3.81-4.73     9.6 7.0-7.8 gneiss boulder largest but schist boulders also present
  7-8-20 7/8/20 2.5-3     2         7.2 6.1 1.6 70.3 4.13-5.12     12.6 7.3-8.1 site of upper collapsed apartment house; mica schist fresh unweathered boulder collapsed into channel eroded by late stage flooding; 3.5 m boulders on 2nd floor
  7-8-21 7/8/21 4 1   1       1                  
  7-8-22 7/8/22 4     1.5-2.5 183       3.5 3.2 1.9 21.3 2.77-3.44     9.2 6.0-6.7
  7-8-23 7/8/23 4     2         8.2 6.2 4.1 208.4 5.93-7.36     12.7 8.7-9.6 gneiss boulder oriented with long axis parallel to flow direction
  7-8-24 7/8/24 4       64                         newly constructed channel with a cross-sectional area of 238 square meters below levees
  7-8-25 7/8/25 4     0.4   .05-.06   1                   fluvial deposition
  7-8-26 7/8/26         72                         newly constructed channel with a cross-sectional area of 261 square meters below levees
  7-8-27 7/8/27   2.3   1.6       0.2                   fluvial deposition (?)
  7-8-28 7/8/28 4.5     1.9       0.35                   fine-grained deposition- fluvial (?)
  7-8-29 7/8/29 2.5-3 2           1.4                  
  7-8-30 7/8/30 3.5-6     3       1.2-1.5                   small boulders on first floor roof of building
  7-8-31 7/8/31 4.5 .75-1.5             2.3 1.7 1.6 6.3 1.84-2.29     6.7 5.0-5.5 gneiss boulder
  7-8-32 7/8/32 4.5 1.8   1.8       2.1 2.8 1.8 1 5 1.71-2.13     6.9 4.8-5.3
  7-8-33 7/8/33 4.5     2     1                    
  7-8-34 7/8/34 3.0-4.0     1.8       1                  
  7-8-35 7/8/35 3.5-4     3         3.2 2.2 1.7 12 2.29-2.84     7.6 5.5-6.1 gneiss boulder; boulder garden in front yard of house
  7-8-36 7/8/36 4.5-5 2.3   1.8       1.3-1.5                  
  7-8-37 7/8/37 ? 1.7-1.8   1.3       1                  
  7-8-38 7/8/38 5.0-7.5 0.55                               flood deposition with a few small boulders; erosion to base of roadway on steep slope; eyewitness-mostly muddy water with a few boulders
  7-12-1 7/12/01 3 2   1.5         1.5 1.2 0.9 1.6 1.17-1.46     5.7 4.0-4.4 rounded boulder punched through two walls of house; house stopped most of debris flow
  7-12-2 7/12/02 3.0-3.5 1.5             1.8 1.3 0.6 1.4 1.12-1.40     5.9 3.9-4.4
    7/12/03 2.5 2.5     36       2.0 1.5 0.5 1.47 1.14-1.41     6.3 3.9-4.4 extension of street as channel
  7-12-4 7/12/04 3 1.9   1.9       1.5-2.0 3.0 2.2 1.9 12.5 2.32-2.88     7.6 5.5-6.1 very thin coarse sand matrix with boulder to boulder contact
                      2.7 2.0 1.9 10.3 2.17-2.70     7.3 5.4-5.9
  7-12-5 7/12/05 4.0-4.5       64       4.6 2.4 1.5 16.6 2.55-3.16     8.0 5.8-6.4
  7-12-6 7/12/06 6 1.8             3.1 2.4 1.7 12.6 2.33-2.89     8.0 5.5-6.1 flow between houses, depth decreases; some boulders have likely been removed from streets; slope with bench on street
  7-12-7 7/12/07 3.5-4.0 1.8   0.6                           pure mud on street (no coarse debris)-3 Avenida
  7-12-8 7/12/08 3 1.5             2.0 1.2 0.9 2.2 1.29-1.6     5.7 4.2-4.6
  7-12-9 7/12/09 2.5-3.5 1.4             3.2 3.0 2.8 26.9 3.00-3.72     8.9 6.2-6.9 rounded boulder
  7-12-10 7/12/10 3.5 2   1.5-2.0         2.0 2.0 1.2 4.8 1.69-2.10     7.3 4.7-5.3 blocks supported by matrix
  7-12-11 7/12/11 2.5 2.5   1.65 20                        
  7-12-12 7/12/12 2.5-3.0       37                         minimal flow over bridge, but apparently bank full flow during event
  7-12-13 7/12/13 3 1.7   1.2-1.4         1.0 0.9 0.7 0.59 0.84-1.04     4.9 3.4-3.8 0.7 m thick fine-grained flood (?) deposit over 1.7 thick df deposit with boulders
  7-12-14 7/12/14 2.5     1.6                           uniform coarse sands
  7-12-15 7/12/15 2.5 1.8   1.2                           all deposits removed
  7-12-16 7/12/16       .65-.9                           deposits tapering down along side street
  7-12-17 7/12/17 1.0-1.5 1.6   .9-1.4                           only fines, no boulders
  7-12-18 7/12/18 1 0.97   0.97                           only fines, no boulders
  7-12-19 7/12/19               1.5-2.0                  
  7-12-20 7/12/20 3.0-3.5 1.07   0.45       0.5                  
  7-12-21 7/12/21 3 0.5-1   0.5-1.0                          
  7-12-22 7/12/22   0.8   0.6         1.6 1.3 0.8 1.6 1.17-1.45     5.8 4.0-4.4
  7-12-23 7/12/23 4.5 .15-.25   .15-.25                           water with fine sediment only
  7-12-24 7/12/24 3.0-5.0     0.45                           only fine sand
  7-12-25 7/12/25 3.0-3.5 1.2-1.5   0.8-1.5 71                        
  7-12-26 7/12/26 3.5 1   .4-.5                           sandy sediment
  7-12-27 7/12/27 2.5     0.8       0.2                   mostly fines
  7-12-28 7/12/28 2 0.8-1.1           1.2                   drilling yielded 4.5 m thick through blocks of old df deposit; only fines in recent deposit
  7-12-29 7/12/29 4.5-5.0 1.1   1         1.3 1.3 0.8 1.35 1.11-1.37     5.9 3.9-4.3 boulders came down street acting as a channel; imbricated boulders
                      0.9 0.8 0.8 0.54 0.82-1.01     4.7 3.4-3.7
  7-12-30 7/12/30 4 1.2   0.8       <0.5 1.9 0.8 0.8 1.2 1.07-1.32     4.7 3.8-4.2
  7-12-31 7/12/31 3.5 2.5   1.5         1.5 0.8 0.7 0.8 0.94-1.17     4.7 3.6-4.0
  7-12-32 7/12/32 3.0-3.5 0.7   0.25                          
  7-12-33 7/12/33 5.0-6.0               3.6 2.8 1.6