HARVEST has progressed over the past week with fine weather helping to push total receivals to more than six million tonnes.
The forecast is also looking positive, with CBH expected to reach 11-12mt tonnes in the next seven days.
CBH's estimate for total receivals remains at 13-14mt.
The Geraldton zone has had a good week with favourable harvesting conditions, with 1.94mt received so far, heading towards the estimated zone total of 3.2mt.
Geraldton zone manager Duncan Gray said more than 500,000 tonnes was delivered to CBH sites in the past week.
"This week just gone we have received 512,459t into the system, placing enormous pressure on specific sites, especially the port and Moonyoonooka," Mr Gray said.
"We have 150,000t of shipping over the next four to five days which will take some of that pressure off.
"We are starting to see growers wrap up their harvest in the north of the zone, but there is still plenty of work to be done yet."
The zone has had some record-breaking deliveries, with Perenjori breaking its record for the second time last week with 5015.65t received on Tuesday, breaking the previous Saturday's record of 4716t received.
It beat a 2011 record of 4580t.
Receivals also increased in the Kwinana zone over the past week with slightly more than 900,000t delivered within the seven days, taking the season total to 3.2mt.
Kwinana zone manager Gavin Bignell said daily receivals were sitting at about 200,000t per day.
Mr Bignell said some sites were under significant pressure, particularly those receiving canola and barley as yields for these grains exceeded expectations.
Growers are urged to check site services and contact local CBH representatives with any queries.
"Wheat receivals have increased significantly with over half of the daily total being wheat - this is particularly the case in the north of the zone," Mr Bignell said.
"With the exception of small areas in the south of the Kwinana zone, harvest is well under way in all areas."
He said the zone's harvest has started about seven to 10 days behind last year, but a solid pace set by favourable conditions meant that it was quickly catching up.
"There are some isolated thunderstorms forecast for the coming week, however we don't anticipate these will have a significant impact on harvest pace and expect receivals to stay over 200,000t per day for at least the next 10 days."
Mr Bignell said quality across the zone had been mixed, with excellent oil content and yields in canola.
"Barley has been mixed but still the quality in general has been good - better than last year," Mr Bignell said.
"The wheat will be the most varied - we have received just over 1mt but we are seeing all kinds of grades."
A week of favourable weather saw 350,000t delivered for the week in the Albany zone, for a season total of 550,000t.
Canola, oats and barley continue to be the primary grains being received, with only 8000t of wheat received to date.
Albany zone manager Greg Thornton said canola yields were slightly higher than expected.
Yields for barley had been mixed, but still higher than expected.
"A high proportion of barley is being received as Malt and additional Malt 2 segregations have been introduced at some sites," Mr Thornton said.
"These additional segregations will place pressure on grid capacity and fire power once wheat starts to be received - early indications from samples and deliveries so far indicate additional wheat segregations will also be required due to frost damage."
Mr Thornton said the new Mirambeena site would help relieve pressure at the Albany Port.
"Shipping for canola and feed barley in the first half of December will also help to keep space available at the port," Mr Thornton said.
"While there is a chance of thunderstorms next week, the forecast looks promising and we expect deliveries will ramp up more next week."
The Esperance zone had a strong week with 486,000t received in seven days, for a zone total of 1.1mt.
Zone manager Mick Daw said growers were starting to swing onto wheat across the zone, while canola deliveries are starting to slow up.
"Canola yields and oil content have been good this year," Mr Daw said.
"Barley is slowing a bit as we see more wheat.
"Protein in the wheat is varied, otherwise the quality is very good.
"Another good week of weather, like we have just had, will see most growers well through their program."
Mr Daw said good volumes of grain would be shipped over the coming week, which would help take pressure off the terminal.