No additional development has taken place in the watershed for drainage line N. Still, every rain brings more erosion to the hillside and additional sediment transport to the pond. The pictures below show the effects of a moderate rain on March 21, 2011. According to NOAA data, between midnight and noon, 0.48 inches of rain fell in the area. These pictures show the sediment plume that was delivered to the pond only from the entry point of drainage line ‘N’ which later dispersed to the entire pond. This is typical of all rain events. Photos are available showing upstream erosion during 2010-2011 rains.:
No additional development has taken place in the watershed for drainage line N. Still, every rain brings more erosion to the hillside and additional sediment transport to the pond. The pictures below show the effects of a moderate rain on March 21, 2011. According to NOAA data, between midnight and noon, 0.48 inches of rain fell in the area. These pictures show the sediment plume that was delivered to the pond only from the entry point of drainage line ‘N’ which later dispersed to the entire pond. This is typical of all rain events. Photos are available showing upstream erosion during 2010-2011 rains. Looking to the SW corner of the pond from hill across Attebury Road. Note outline of sediment plume. Looking SW. Pond entry point of line “N” watercourse is to the right. Note intensity of sediment plume as it disperses in pond.
Slide 3:
Click on the icon above to access a report by Hydrogeologist Soroosh Sorooshian regarding the drainage line ‘N’ diversion
Slide 4:
Click on the ‘Adobe Acrobat Document’ box to see a summary of attempts to obtain copies of at least 5 tasks known to be completed by Lyle Engineering for the City of San Marcos regarding “Carr Property Scour Analysis”. According to the California Public Records Act documents must be provided within 10 days. Until a lawsuit is filed, attorney / client privilege does not apply.