Great Hill Pond — Shoreline & Water Quality Observation Log

Chronological field documentation tracking shoreline accumulation, surface film progression, and biological response following herbicide management activities.

Documentation Context: Images and on-site logs focus on visible cyanobacteria scums, shoreline drift, suspended cell colonies, and post-treatment organic decay along the littoral zone.

Video Documentation

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Field Photographic Log

August 4
5 Photos
Initial observations of early surface discoloration and localized particulate suspension. Windward coves showing light green surface film developing along vegetation fringes.
August 4 - Wide shoreline overview
Wide shoreline overview showing water clarity and perimeter conditions.
August 4 - Surface film close-up
Early surface film collecting along dock pilings and shoreline structure.
August 4 - Water column suspended flecks
Water column profile displaying suspended micro-colonies beneath surface.
August 4 - Lily fringe edge
Floating-leaf vegetative fringe showing initial entrapment of green film.
August 4 - Nearshore sediment and bank
Shoreline bank perspective showing water line contact point.
August 5
5 Photos
Noticeable thickening of surface accumulation. Streaking patterns emerge across quiet surface areas with rising midday water temperatures.
August 5 - Shoreline sweep
Shoreline sweep showing extended parallel bands of green film.
August 5 - Dock margin scum
Surface scum concentrating in protected corner pockets along the dock.
August 5 - Close-up film texture
Close-up of cohesive surface film displaying curdled texture.
August 5 - Mid-cove clarity check
Mid-cove clarity test demonstrating reduced Secchi visibility.
August 5 - Downwind wash-up
Downwind wash-up along emergent vegetation beds.
August 6
5 Photos
Distinct paint-spill appearance forming along calm shoreline edges. Suspended cell density remains visible throughout the top foot of the water column.
August 6 - Paint-like surface layer
Dense, spilled-paint texture forming continuous shoreline mat.
August 6 - Nearshore band
Continuous nearshore band extending out several yards from shore.
August 6 - Macro surface detail
Macro view of dense algal aggregations floating on surface tension.
August 6 - Submerged vegetation check
Submerged vegetation beds obscured by heavy water column turbidity.
August 6 - Bank deposition
Residue coating shore rocks and littoral detritus.
August 7
5 Photos
Scum accumulations persist along shoreline margins. Noticeable odor and surface scum layering during warm, low-wind afternoon hours.
August 7 - Afternoon calm scum layer
Heavy surface stagnation under full sun and low wind velocity.
August 7 - Shoreline contact line
Accumulated green scum banking heavily against natural shoreline rocks.
August 7 - Water depth perspective
Direct downward view illustrating opacity within first 6 inches.
August 7 - Vegetative entrapment
Entrapment within emergent reeds and shallow littoral vegetation.
August 7 - Secondary cove perspective
Adjacent cove view showing continuous dispersion of bloom conditions.
August 15
5 Photos
Mid-month monitoring. Persistent cell counts in open water; localized shoreline scums shifting based on prevailing wind patterns.
August 15 - Open water perspective
Open water corridor demonstrating persistent pea-green water tint.
August 15 - West shore accumulation
West shoreline convergence zone showing wind-driven accumulation.
August 15 - Close surface film
Coagulated blue-green particles floating at lake-air interface.
August 15 - Water intake/dock area
Scum ring encircling dock pilings and shoreline access ladders.
August 15 - Bankline residue
Shoreline bank displaying dried cyanobacteria crust at high-water line.
August 20
5 Photos
High cell density documented. Pronounced streak patterns across primary basin with localized accumulation along leeward pockets.
August 20 - Basin streak patterns
Extensive streaking across broad surface area following gentle breeze.
August 20 - Protected cove matting
Heavy green matting established within protected cove indentations.
August 20 - Direct down-angle
Direct overhead shot showing dense particulate matter in suspension.
August 20 - Decaying lily pad zone
Interaction zone: scum pooling around decomposing lily pad stems.
August 20 - Shoreline profile
Shoreline profile showing persistent edge discoloration.
August 24
5 Photos
Late-month surface conditions showing heavy biomass concentration. Scum formation intense along west shore perimeter.
August 24 - West shore expanse
Extensive bloom cover lining the western littoral zone.
August 24 - Dense surface layer
Thick pea-soup consistency coating nearshore water surface.
August 24 - Cell lysis turquoise streaks
Early turquoise/blue coloration showing cell breakdown and pigment release.
August 24 - Vegetation border
Border zone where dense scum settles into wetland grass margins.
August 24 - Dock perimeter overview
Thick accumulation surrounding residential dock structure.
August 25
5 Photos
Continued accumulation. Visual indicators consistent with elevated cyanobacteria cell counts; prominent surface scum layers across multiple coves.
August 25 - Morning shoreline view
Morning calm documenting undisturbed surface crust along shore.
August 25 - Surface texture detail
Close inspection of oily/curdled appearance characteristic of bloom.
August 25 - Water sample perspective
In-situ clarity test showing zero bottom visibility past 4 inches.
August 25 - Decaying organic matter
Intermixed decaying plant matter contributing to high surface organic load.
August 25 - Extended shoreline panorama
Panoramic stretch demonstrating hundreds of feet of impacted shoreline.
August 30
5 Photos
Comprehensive sweep of the west shoreline. Documenting severe continuous scum mats, drying shoreline crust, and distinct blue-green pigment accumulation along the littoral boundary.
August 30 - West shoreline panorama
West shoreline panorama showing full extent of heavy surface coverage.
August 30 - Concentrated scum band
Opaque, paint-like layer reaching several inches deep near water line.
August 30 - Pigment release and cell lysis
Bright turquoise blue pigment (phycocyanin) visible from lysing cells.
August 30 - Dock access accumulation
Dense accumulation along primary residential dock and ladder entry.
August 30 - Shoreline drying edge
Drying cyanobacteria crust deposited on rocks and bank soil.