Oxford Cambridge and RSA
*1388725841*
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• Spelling, punctuation and grammar (SPaG) and the use of specialist terminology will be
assessed in questions marked with a pencil (!).
• This document has 12 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8224/6] DC (ST/JG) 334325/8
OCR is an exempt Charity
Turn over
1
(a) Look at Fig. 1 in the Resource Booklet.
, 2
(i) What approximate fraction of water lost from Southern Water’s Network came from
Portsmouth Water?
A 1/25
B 1/10
C 1/4
D 1/2
Write the correct letter in the box.
(ii) State the reasons why Southern Water introduced a hosepipe ban in August 2022.
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
................. [2]
(b) Look at the graph below showing water supply and demand for the years 2005–2030
for Portsmouth Water.
Water
350
300
volume
250
200
2005 2010 2015 2020 2025 203
Year
Supply available Forecast demand
(i) Identify the year forecast demand first exceeded the supply available.
....................................................................................................................................
................. [1]
© OCR 2025
, 3
(ii) Explain why the Portsmouth area may be classed as being in ‘water stress’.
...............................................................................................................................................
...........
...............................................................................................................................................
...........
...............................................................................................................................................
...........
...............................................................................................................................................
...... [2]
© OCR 2025 Turn over
, 4
2
(a) Look at Fig. 2a and Fig. 2b in the Resource Booklet.
(i) Describe the location of the Havant Thicket reservoir.
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
................. [2]
(ii) Suggest the possible disadvantages of building this reservoir.
....................................................................................................................................
...................... .............................................................................................................
.............................................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
................. [3]
(b) Look at Fig. 3 in the Resource Booklet.
(i) Calculate the distance across the reservoir between points X and Y.
....................................................................................................................................
.... metres [1]
(ii) Use the data below collected between points X and Y to complete the cross-section
by plotting
the 300 m depth to show the shape of the reservoir basin.
© OCR 2025
*1388725841*
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• Spelling, punctuation and grammar (SPaG) and the use of specialist terminology will be
assessed in questions marked with a pencil (!).
• This document has 12 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8224/6] DC (ST/JG) 334325/8
OCR is an exempt Charity
Turn over
1
(a) Look at Fig. 1 in the Resource Booklet.
, 2
(i) What approximate fraction of water lost from Southern Water’s Network came from
Portsmouth Water?
A 1/25
B 1/10
C 1/4
D 1/2
Write the correct letter in the box.
(ii) State the reasons why Southern Water introduced a hosepipe ban in August 2022.
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
................. [2]
(b) Look at the graph below showing water supply and demand for the years 2005–2030
for Portsmouth Water.
Water
350
300
volume
250
200
2005 2010 2015 2020 2025 203
Year
Supply available Forecast demand
(i) Identify the year forecast demand first exceeded the supply available.
....................................................................................................................................
................. [1]
© OCR 2025
, 3
(ii) Explain why the Portsmouth area may be classed as being in ‘water stress’.
...............................................................................................................................................
...........
...............................................................................................................................................
...........
...............................................................................................................................................
...........
...............................................................................................................................................
...... [2]
© OCR 2025 Turn over
, 4
2
(a) Look at Fig. 2a and Fig. 2b in the Resource Booklet.
(i) Describe the location of the Havant Thicket reservoir.
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
................. [2]
(ii) Suggest the possible disadvantages of building this reservoir.
....................................................................................................................................
...................... .............................................................................................................
.............................................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
......................
....................................................................................................................................
................. [3]
(b) Look at Fig. 3 in the Resource Booklet.
(i) Calculate the distance across the reservoir between points X and Y.
....................................................................................................................................
.... metres [1]
(ii) Use the data below collected between points X and Y to complete the cross-section
by plotting
the 300 m depth to show the shape of the reservoir basin.
© OCR 2025
