Never rely on DI protection
Never rely on DI protection

Although this shows poor drain inlet protection. There is deficient upstream erosion and sediment control.

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Turbid runoff in swale
Turbid runoff in swale

Runoff in concrete swale appears turbid - but < 250 NTU. Contributing area appears to have sufficient erosion and sediment control.

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Floatables in CDS unit.
Floatables in CDS unit.

Inspection of post-construction and operational treatment units is required to assess and trigger maintenance of units.

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Dry cement dumped near DI
Dry cement dumped near DI

Material supply stores typically have spilled and dumped dry cement in storage and parking lots. Cement presents a future water quality pH exceedance.

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Slope stabilization results
Slope stabilization results

Stream riparian and slope stabilization. Included erosion control blanket and revegetation effort.

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BMP combination
BMP combination

An innovative combination of drain inlet protection with sediment border barriers and slope bonded fiber matrix application provides a protective measure to prevent to reduce turbid discharges while vegetation is established.

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Potential sampling point
Potential sampling point

Collecting CGP samples should be beyond gravel bag barrier. May be beyond a filter fabric cover - how?

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Sampling at treatment BMP unit
Sampling at treatment BMP unit

Sampling point is relocated to a Stormceptor unit as construction progresses and collection system is installed.

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DI wn field
DI wn field

Difficult to allow this drain inlet to function until surroundings are stabilized. Inlet is temporarily covered with filter fabric to divert runoff and reduce discharge.

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Stockpile in gutter
Stockpile in gutter

Stockpile may have cover but poorly placed in street butter.

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flooded Chollas.JPG
flooded Chollas.JPG
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E Chollas at National.JPG
E Chollas at National.JPG

Flooding of Chollas Creek, nearly breaching road.

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