It is key to have the sample properly represent what you plan to dispose, loads that differ from the sample, profile and analytics could face rejection or placed in a hold (extra charges).


To avoid this, make sure the sample provides the right ratios of material (liquids and solids). Here are some tips:



Proper Sampling Technique

1. When collecting a sample, be sure to there is no headspace within the sampling container as it may alter the analytical results.


2. Fill the sample receptacle just to overfull and cap.


3. The sample collected needs to be a complete representation of the effluent discharge. Defined below are techniques to collect samples for testing.


·  “four day average”: the average of four discrete sampling events for a particular pollutant, which is determined by the sampling frequency and not necessarily four consecutive calendar days


· “composite sample”: a series of individual discrete samples taken at selected intervals based on either an increment of flow or time. The samples are mixed together to approximate the average composition of discharge to the City sewer system. A composite sample for one day shall consist of a pool of samples, collected over the operational period of the production day.


·  “grab”: an individual sample collected in less than 15 minutes, without regard to flow or time


·  “grab-composite”: a minimum of four grab samples collected and preserved over a 24-hour period and combined to provide a representative sample of effluent being discharged


4. Appropriate sample containers

·  Only use approved collection vessels for the sample collected and the test that needs to be performed. PPV will reject and require a new aliquot for any sample brought to us in a non-approved container.


i. We will offer bottle kits based on you testing needs that will be sent to you


5. Proper packaging of samples for transportation

·  Samples will need to be cooled to approximately 4°C upon arrival at PPV



NOTE: What are hazardous material and why we don’t except them

·  It is dangerous or potentially harmful to our health or the environment. Hazardous wastes can be liquids, solids, gases, or sludge’s. They can be discarded commercial products, like cleaning fluids or pesticides, or the by-products of manufacturing processes.


·  We don’t except hazardous material, DMSO, glycols, or coolants because of our permit with the city of Portland does not allow it



PPV | Inc.


Location (Office & Plant)

4927 NW Front Avenue

Portland,  OR  972010



Phone:  (503) 261-9800

Fax:  (503) 261-9900



PPV | Bravo Environmental


Portland Operations

4927 NW Front Avenue

Portland,  OR  972010


Seattle/Tukwila Operations

6437 South 144th St.

Tukwila, WA  98168

Phone:  (425) 424-9000

Toll Free:  (888) 272-8644

FAX:  (425) 424-9002



© 2017.  Privacy Policy

Tel: (503)261-9800

Plant Hours


Hours:  6:30 am to 5:00 pm


Office Hours


Hours:  8:00 am to 5:00 pm