Customer Question: When designing a Sewage Treatment process for a caravan park what Population Equivalent (PE) do you assign to each caravan unit?

Dear Customer,

Thank you for your enquiry.  The Irish EPA assign the follow figures to Caravan Sites:

Estimating the occupancy of different caravans or mobile homes is more difficult.  Generally, it is best to plan for peak occupancy, therefore the normal size of caravan used on site of in general should be ascertained.  They have normal occupancy numbers assigned to them and these can just be multiplied by the figures above.  If it is an established site their occupancy figures should be analysed and multiplied based on the figures above to obtain the peak occupancy, especially during the July/August peak season.

If it is a new site, the best way might be to try and obtain figures from a nearby (as possible) site.  Their figures can then be analysed based on the various plots on the site and an average occupancy per caravan/mobile home/tent per day obtained at different times of the year.  This could then be applied to the new site based on their maximum number of plots available.

BMS have over 35 years of experience and are specialists in providing custom sewage treatment solutions for caravan parks, camping sites and hotels.

More answers such as the above can be found in our education blog.

A bit about BMS

BMS is a quality manufacturer of package products for wastewater and stormwater treatment. BMS started in 1986 and has exported products to over 50 countries around the world.  It is a third generation family business with huge expertise in wastewater and stormwater.
BMS also manufacture a full range of products for surface water and wastewater treatment including our pioneering next generation RBC system the Aerotor, which forms part of our world leading Blivet package sewage treatment plant, a ‘one stop shop’ for all surface water products from design to installation including attenuation, interceptors, holding tanks (incl. chemical resistant), hydrobrakes, rainwater harvesting tanks & vortex silt/oil/debris separators, fully fitted pumping stations, our plug & play vehicle wash water recycling system; the Recyclone and much more.  Please see our enclosed Company & Product Profile for a full summary or View our full product/services catalogue at this link

BMS also can provide a Free Design Service for Sewage Treatment, Pump Stations or Surface Water and a full O&M, Repair, Advice and Testing service for existing installations.  We also can do free CPD Presentations on Sewage Treatment/Surface Water Management at any location.  Let us know when suits.

We would be delighted to discuss any requirements you might have, and we are available to meet you at your convenience.  Please do not hesitate to contact us.

Caravan Type Flow (L/Person/Day)    BOD (G/Person/Day)
Touring                                                                          50 35
Static (Not Serviced) 75 35
Static (Fully Serviced)         150 55
Tent Sites 50 25